If a (-7,0), b(0,0), c(0,7), what type of angle is

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

41/2 - 1 1/3 what is the answer as a fraction?

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)