I've been stuck for 30mins

if f(x) = 3x + 10x and g(x) = 2x – 4, find (f + g)(x)

What is the absolute value of the complex number -4-sqrt2i

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

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