How could you use the midpoint formula to find a point located 1/4 the distance between two endpoints

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Do you mind if you guys me with this question i’m on number 8

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)