Books you want to buy either a paperback or hard covered book as a
gift for 5 friends. paperbacks cost $6.95 each and hard covered books
cost $24.99 each. write an expression for the total amount you must
spend. evaluate the expression if 3 of your friends get a paperback.

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

What is the value of x when x + 7 = 21?

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w