Long division… pleas give exact answers

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

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.