Answer:
2.8
Step-by-step explanation:
If you turn the question around (6.7 - 3.9) the answer is 2.8
Hope this helps~
22.75/350=0.065
0.065=6.5%
Sales tax= 6.5%
a. 
has an average value on [5, 11] of
b. The mean value theorem guarantees the existence of 
such that 
. This happens for
The slope is 2, because you subtract the points 3,17 from 7,25 to get 8/4/ Simplify that into 2.
