PLEASE NEED ANSWER ASAP Select the correct answer.
Consider function f(x) = 2x^2
What is the value of (fof)(x)?
OA. 4x^2
OB. 4x^4
OC. 8x^4
OD. 16x^4

What is (28 + 7 + 6 + 3) x 1/2 show your work

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

Translate this phrase into an algebraic expression. 21 more than twice goran's savings use the variable g to represent goran's savings. need to know fast.