Hi i need help with this spanish problem please its kinda easy

Help me with number 7 (geometry) hint= x is 18 1/3 (show work) Why did scientists have to come up with a way of measuring distance in space? need help solving a practice question 2.lptPart AWhich sentence best states the central idea of "Puzzles of the Chesapeake"?A. The first people to inhabit the Chesapeake traveled there to find wealth and were ultimately successful.B. Doug Owsley has spent many years working to discover what caused the deaths of the people who settled inJames Fort.C. Forensic anthropologists help uncover important historical mysteries, such as those surrounding TheChesapeake.D. There are many mysteries surrounding who the first settlers in the Chesapeake area were and how they died.Part BWhich quotation from "Puzzles of the Chesapeake" best supports the central idea of the passage?A. They hoped the lands surrounding the Chesapeake Bay would hold great wealth, especially silver and gold.B. "They study buildings and manmade objects, called artifacts..."C. "The scientists who found the boy's grave have spent years working at several extraordinary sites..."D. "The skills these scientists use....are also perfectly suited to the study of human remains of centuries past. how did Anita's main ideas relate to her topic cite textual evidence in your discussion PLEEEEEEASE HELP D5. At which point is the sonar travel time going to be the shortest? Can somone help me on this with an explanation PLZ :( me when i put my hand into my teachers automatic pencil sharpener during class A cylinder is 12 feet high and has a diameter of 10 feet. in cubic feet, what is the approximate volume of the cylinder Write slope intercept of the equation with slope of 7 crossing point (0, 5) I put rwenty points into this so pls help me After this speech, the space race with the Soviets finally had a specific target.Which sentence from the speech MOST supports this statement?A I am here to promote the freedom doctrine.B I believe we possess all the resources and talents necessary.C For while we cannot guarantee that we shall one day be first, we can guarantee that any failure to make this effort will make us last.D I believe that this nation should commit itself to achieve the goal, before this decade is out, of landing a man on the moon and returning him safely to the earth. Determine the number of atoms of 25 g iron(II) chloride Mary had a lemonade stand. In one day she sold 65 glasses of lemonade.If each glass contained 150 MILLILITERS of the lemonade, how manyLITERS did she sell in all? I need help with a few questions!!! can u guys help? this is the first one... what is supreme of the land 5. Two presidents walked to their ceremonies. Which of the following was one of them? *James K. PolkAndrew JacksonJohn Adams Please help. This is due today and I really have no idea what Im doing. Which of the following is NOT a true statement about managing stress?A. It can improve general moodB. It can boost immune functionC. It can promote longevityD. It can allow for a hindrance in productivity what 2 nations led in old imperialism (1500-1600)?