Please help asap!

Find the area of the figure.
area ___ units^2

H(x)=4x2-5x h(-3) what is the answer?

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

For which pair of functions is (gof)(a)=|a|-2?