if W = 13 units, X = 6 units, Y = 10 units, z = 11 units, what is the surface area of the right rectangular pyramid shown above?

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

There are a total sales of 2,000 dollars on monday on tuesday sales dropped 10% on wednesday sales dropped another 20% compared with tuesday from wednesday to thursday sales increases by an equal amount to 25% of monday total sales what is the net change in dollars on total sales from monday to tuesday

Find 1/8 of 12. express your answer in simplest form.