Answer:
A. The student earned $18 for cleaning out his neighbor's garage.
Step-by-step explanation:
<em>Since it given that a student spend $18 for a haircut this week also means that she/he gave away $18 also known as -$18.</em>
<em>Thus, base on the given answer choices:</em>
<em>[A] is the only one that can make it positive.</em>
<em>Going through all answer choice:</em>
<em>A. The student earned $18 for cleaning out his neighbor's garage.</em>
<em>Earned = +</em>
<em>B. The student paid his little brother $18 for doing his chores.</em>
<em>Paid = -</em>
<em>C. The student purchased a gift for his mom for $18.</em>
<em>Purchased = -</em>
<em>D. The student gave $18 to a friend.</em>
<em>Gave = -</em>
<em>Hence, Answer is A. The student earned $18 for cleaning out his neighbor's garage.</em>
<u><em>~lenvy~</em></u>
Answer:
$6,000
Step-by-step explanation:
The mean value of a sample is assumed to be the same as the mean of the population. The mean of a uniformly distributed variable between 0 and 160 is:

If the mean cost for each machine is $80, the mean aggregate cost for a sample of 75 machines is:

The mean aggregate maintenance cost is $6,000.
Answer:
A 161 square feet
Step-by-step explanation:
5×5=25
1/2 of 25 is 12.5(triangular face) ×2=25
5×8 is 40 (base and left face)
8×7 is 56 (right face)
25+40+40+56=161
Answer:
see below
Step-by-step explanation:
4x + 10 = 2(2x + 5)
Distribute
4x+10 = 4x+10
Since the left side is identical to the right side, there are infinite solutions
4x - 5 = 4x + 10
Subtract 4x from each side
-5 = 10
This is never true, so there are no solutions
4x-5 = -5
Add 5 to each side
4x = 0
x=0
There is one solutions
1.5 or 1 1/2 in. On the map equals24 miles