Answer:
b and c
Step-by-step explanation:
Question 5 answer: 30
Question 6 answer: 4
The number of computers increased by 38.9%
Step-by-step explanation:
Number of computers at start of week = Old value = 18
Number of computers by end of week = New value = 25
Change = New value - Old value
Change = 25-18 = +7
The positive sign indicates the increase.
Increase percent = 

Rounding off to nearest tenth
Increase percent = 38.9%
The number of computers increased by 38.9%
Keywords: difference, percentage
Learn more about percentages at:
#LearnwithBrainly
Answer: $14,000
Step-by-step explanation:
Given the following :
Room & Board = $11,500
Work - study = $8000
Grant & scholarship = $9500
Tuition fee = $9500
If she pays balance with a student loan, how much will she need to borrow:
Elisha's bill:
Tuition fee and room and board
($9500 + $11500) = $21,000
Elisha's earning:
Work - study and scholarship & grant
($8000 + $9500) = $17500
Therefore,
Amount to borrow per year :
$21,000 - $17,500 = $3500
For four years :
4 × $3,500 = $14,000
Multiply like this. And it gives you your answer.
7.8•7.8•7.8