Answer:
Step-by-step explanation:
32.5*9=292.5
add the commission - $28.75
292.5+28.75= $321.25
Since is addition you do the opposite and subtract 12 from 12 and -5 then 12 cancels out and -5-12=-17
Set up a proportion. 6/10 = 9/x. cross multiply so x times 6 = 6x. And 10 times 9 = 90. so 6x=90. Then 90 and 6x divided by 6. which gets you x=15. The 9 ft tall elephant will cast a 15 ft shadow.
I agree with you on this problem. It is A. If that is the final answer, the negative exponent must be flipped in order to be positive. According to the equation, it is not positive so it is not a simpflied polynomial.