Identify the variable expression that is not a polynomial.
a. x + 12
b. x^-9 + y3
c. y^9 + 27
d. 33

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

b.-4 units

all you   do is count how many times you move

$3,200 x 7.25% = $3,200 x .0725 = $232 interest monthly

$232 monthly x 12 annual = $2, 784

step-by-step explanation:

idk u tell me

step-by-step explanation: