Includes the points (-6 , n) and (-8, -9) has a slope of 4 what is the value of n?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Evaluate the following expression 1/3^2

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.