Answer:

Step-by-step explanation:

<span>18x+9xy is correct all Roots are to x=0 and y=-2
(9x⋅2)+(9x⋅y) is correct </span>Roots are to x=0 and y=-2
Y=-4x-8, just graph it and plot points
Amy can estimate with 10% instead, so she can just simply move the decimal point of $9.11 to the right, and so it will be estimated to more than 91 cents.
b (-7, -9) and d (5, 15) are both ordered pairs that satisfy the function of y=2x+5. i hope this helps you :))