Answer:
c. 
d. 
Step-by-step explanation:
For this exercise you need to remember the following:
1. The multiplication of signs:

2. The Product of powers property, which states that:

3. The Distributive property:

Knowing that, you can solve the multiplication of the polynomials:
c. 
d. 
Peter answered 9 of the questions correctly. 15 divided by 100 to get .15 and then multiply by 60 to get 9. Got 9 correct, 7 incorrect.
Hi there!
Here is the step by step explanation to solving this problem :
20% of $1,049
20% is the same thing as 0.2 & the word "of" is the same thing as a multiplication sign :
0.2 × 1,049 = $209.80
1,049 - 209.80 = $839.20 = price after discount
4.25% is the same thing as 0.0425 :
0.0425 × 839.20 ≅ $35.67
839.20 + 35.67 = $874.87
The total cost is : $874.87
There you go! I really hope this helped, if there's anything just let me know! :)