A trader marks his good at 40% above the cost price and allows a discount of 25%. What is his gain percent? 

The figure shows the front side of a metal desk in the shape of a trapezoid. what is the area of this trapezoid? 10 ft²16 ft²32 ft²61 ft²

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer

Calculate the mean value (expected value) of the following discrete variable x (10 points): x = 0, 1, 2, 3, 4, 5, 6 p(x) = 0.2, 0.2, 0.15, 0.15, 0.15, 0.1, 0.05