23 books. Because if you do 3x7+2 it will equal 23.
.16 because 4 divided by 25 it .16
There is 4.88% decrease in Olivia's score.
Step-by-step explanation:
Given,
Score on first math test = Old value = 82 points
Score on second math test = New value = 78 points
Change = New value - Old value
Change = 78 - 82 = -4
The negative sign indicates the decrease.
Decrease percent = 
Decrease percent = 
Decrease percent = 4.88%
There is 4.88% decrease in Olivia's score.
Keywords: percentage, difference
Learn more about percentage at:
#LearnwithBrainly
Answer:
The sum of 68 and 14 = 82
The product of 56 and 65 = 3640
The difference between 78 and 24 = 54
The quotient of 648 and 13 = 49.84
65 multiplied by 45 = 2925
Find the quotient of 230 and 5, then add 47 = 93
Subtract 43 and 12, then divide by 3 = 10.33
Find the product of 681 and 23, then subtract by 4 = 15659
Add 9 to the difference of 19 and 8 = 20
Multiply the sum of 87 and 16 by 13 = 1339
Subtract 56 from the product of 58 and 42 = 2380
Add 99 to the quotient of 850 and 10 = 184
Answer:

Step-by-step explanation:
Q is a point on the line segment PR.
PQ = 3
QR = 11
PR = PQ + QR
PR = 3 + 11 = 14