Need an answer asap please! math

will give brainliest to correct answerer

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?