Carlos bought an item online for $160 and he was charged $8 fee for shipping. what was the percent of the sale was the shipping fee

Evaluate the expression. (9 + 5)(3 + 2)0

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?

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square