Answer:
-9a^2+14
Step-by-step explanation:
I am using the laws:
1)

2)

3)

an x is a base - the law is valid if the bases are the same number!
The solution in attachment :)
2.25/12.50 = 0.18. then turn 0.18 into a percentage by doing 0.18 x 100 = 18%. Therefore, he gave an 18% tip.
I think these are the answers but i'm not to sure: 20.0. 15
The company matches up to 8%.
Multiply her salary by 8%:
66410 x 0.08 = $5,312.80
Her company will match 50% ( which is half the amount)
Divide the 8% total by 2:
5312.80 / 2 = 2656.40
The answer is B.