A hot air balloon is 10 meters above the ground rising at a rate of 15 meters per minute. another hot air balloon is 150 meters above the ground and descending at a rate of 20 meters per minute. after how long will the balloons be at the same height? what is the height?

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125