At 10 a. m., there were 12 people in a swimming pool. at 11 a. m., there were 27 people in the pool. what was the percent of increase in the number of people in the swimming pool from 10 a. m. to 11 a. m.?

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?