What is the greatest common factor (GCF) of $12$ and $16$?

In Exercises 97–102, write each algebraic expression without parentheses. 1/3(3x)+[(4y)+(−4y)]

In Exercises 1–16, evaluate each algebraic expression for the given value or values of the variable(s). x^2+3x, for x=8

In Exercises 1–16, evaluate each algebraic expression for the given value or values of the variable(s). x²-6x+3, for x=7

In Exercises 1–16, evaluate each algebraic expression for the given value or values of the variable(s). 4+5(x-7)³, for x =9

Evaluate the algebraic expression when $x=4$ and $y=-5$.

$2y-x\(\left\)(3+y\(\right\))$

Evaluate the algebraic expression when $x=-3$ and $y=2$.

$x\(\left\)(20-15y\(\right\))-\(\left\)|2x+y\(\right\)|$

Simplify

$-3\(\left\)(5-x\(\right\))+10-7x$

Simplify

$-13+4x+x\(\left\)(9-x\(\right\))$