The ordered list of numbers {18,21,24,A,36,37,B} has a median of 30 and a mean of 32. Find B-A.

Which of the following is correct interpretation of the expression -4+13

If the class was going to get a class pet and 5 picked fish and 7 pick bird and 8 picked rabbits have many students were in the

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?