Answer:
The relation is not a function
The last one
x^2-3X-28
Z Z Z Z Z
1. 7.00
2. A. <span>Sarah is paying the smaller price of $1.25 per cupcake.
</span>
<u>Your answer is 28x^2-37x+12</u>
<u>1) Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd</u>
28x^2-21x-16x+12
<u>2) Collect like terms</u>
28x^2+(-21-16x)+12
<u>3) Simplify</u>
28x^2-37x+12
