What are the terms in the expression 7x+18

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2