The class of 2015 decides to start a t-shirt company. after initial expenses of $280, the purchase each t-shirt for $3.99. they sell each t-shirt for $10.99. how many must they sell to break even?

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