The total revenue R (in dollars) is directly proportional to the number of units sold x. When 20 units are sold, the total revenue is $240. Find a mathematical model that relates the total revenue R to the number of units sold x.

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