Ascience teacher has$225 to spend on lab equipment. he buys 4 posters with a quide to classifying rocks, for $19 each.

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?

Bc and bd are opposite rays. all of the following are true except a)a,b,c,d are collinear b)a,b,c,d are coplanar c)bc=bd d)b is between c and d

Build is 120 wide 20 feet high 48 feet long how many cubic feet and the volume