Answer:
A. 
B. 
Step-by-step explanation:
A. 
Where,


Plug in the values to get a polynomial that represents the area of the tool




B. To find area, when x = 4.5 in, plug in the value of x into the equation for the area of the tool.





This equation is currently in Point Slope Form. You can easily convert this form to Y Slope Intercept by following these steps.
Add 3 to both sides.
y = -2(x-2)
Simplify.
y = -2x + 4
150 / 12 = 11.6666666667
11.6666666667 x 30 = approximately 350g of flour for 30 cakes
X= 30
y=18,000(1.04³⁰)=18,000(3.24339751)≈58381
answer: B)58,381