I need help with this pleas

8

Step-by-step explanation:

The order of operations is PEMDAS:

Parentheses, Exponents, Multiplication & Division (whichever comes first), Addition & Subtraction (whichever comes first)

So...

16²/8(4)=256/32=8

Step-by-step explanation:

16^2 = 256

8 * 4 = 32

Answer = 256 / 32 = 8

48, - 132, 16, 21

Step-by-step explanation:

Substitute the given values of x into f(x), that is

f(3) = 12(3) + 1 = 36 + 12 = 48

f(- 12) = 12(- 12) + 12 = - 144 + 12 = - 132

f() = 12() + 12 = 4 + 12 = 16

f() = 12() + 12 = 9 + 12 = 21