The price of a house increase from 250,000 to 400,000 what is the percent increase

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?