21 - 13.50= 7.50
so based on what your question is asking, Serena makes $7.50 more than Gabe per hour.
Answer:
C
Step-by-step explanation:
Not A b/c the difference b/w 85 and 17 is not 76
Not D b/c the difference b/w 97 and 17 is not 76
Not B b/c 16 is not 20% of 92
By the process of elimination the answer is C
Answer:
The answer is 1
Step-by-step explanation:
Formula for finding the slope: 
Take y2 and y1 from (4,<u>4</u>) (1,<u>1</u>)
Take x2 and x1 from (<u>4</u>,4) (<u>1</u>,1)

This is how the answer is 1
Hope it helps :)