Answer:32
Step-by-step explanation:
(20)-(-12)=20+12=32
36 x 3/9.
3/9 = 0.33
0.33 x 36 = 12
<u>Answer:
</u>
In 3 hour 15 minutes Dennis will walk 9.2072 miles.
<u>Solution:
</u>
It is given that Dennis can walk 2.833 miles each hour. We have to find how far will he walk in 3 hours 15 minutes.
We first convert 15 minutes in hour. To convert 15 minutes in hour we divide 15 by 60.

Therefore 3 hours 15 minutes can be written as 
Now,
In 1 hour dennis can walk 2.833 miles

Thus in 3 hour 15 minutes Dennis will walk 9.2072 miles.
1. m = -5/2
2. b = 15
3. y = -5/2x + 15
The answer is B
She cannot guarantee that the percentage taken directly corresponds to the entire student body