Can you help me at least with number 6?

Given a circle with a radius of 2 which is the length of an arc measuring 75

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

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