10 POINTS The table shows the research activities of two students at an observatory. How much does a student pay to use the telescope for one hour​

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

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?

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x