<span>100 is decreased by 8% = 92
</span><span>then increased by 8% = 92(1.08) = 99.36
answer
</span><span>C. Between 92 and 100</span>
We have to evaluate the summation of (3n+2), with n ranging from 1 to 14. Let's write all the terms of the sum for each value of n:
n=1:

n=2:

n=3:

n=4:

n=5:

n=6:

n=7:

n=8:

n=9:

n=10:

n=11:

n=12:

n=13:

n=14:

Now, let's sum all the terms together, and we get:
Answer:
15 hours
Step-by-step explanation:
150 divided by 10 equals 15
We can write b= boys, and g= girls
we know that girls are equal g=(2*b-5)
we also know that b+g=40
we will replace girls with the above equation and get
b+ (2*b-5) = 40 , 2*b=2b
b+2b= 40+5
3b=45, divide everything by 5
b=15
girls are 2*15-5=25
15+25=40
Smaller rectangular prism:
Width: 5in
Length: 7in
Height: 5in
V= WxLxH
V= 5x7x5
V= 175 in3
Bigger rectangular prism:
Width:11
Length:14
Height:7
V= WxLxH
V=11x14x7
V=1078 in3
ADD THEM ALL TOGETHER:
175 in3 +1078 in3= 1253i n3