The first hill on a roller coaster is 155 feet tall. the first drop on a second roller coaster is about 11/20 as tall as the first coaster. find the height of the hill on the second roller coaster

Can someone me with the property questions for 12 13 and 14 plz

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?