Answer:
the answer is b i thinkk.
We can compare by converting Johnny's reading time into the same unit of Jacky's, hours.
There are 60 minutes in an hour, so use this:

15 < 20, so Johnny read faster. This is 5 pages faster per hour than Jacky.
Answer:
b
Step-by-step explanation:
8x +4(x -1)
<em>Expand by multiplying 4 into each term inside the bracket:</em>
= 8x +4(x) +4(-1)
= 8x +4x -4
<em>Simplify</em>
= 12x -4
Thus, the answer is b.
<span>Statement: ∠7 and ∠8 are supplementary.
Reason: Linear Pair Theorem</span>
Answer:
3^12
Step-by-step explanation:
(3^5)^2 = 9^10
9/3=3
10-(-2)=12
Answer 3^12