Answer:
D. $15x+20<$110
Step-by-step explanation:
$15 times the number of days plus the service fee should be less than $110.
Answer:
4b+8 = 20
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4b = 20
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b = 5
Step-by-step explanation:
We need to solve for b in the following equation:

When we multiply each term by 2 the denominator cancels out:

Next, we subtract 8:

Final step, we isolate the variable. We cancel the multiplication on the left side when dividing by 4 on each term

Solving for x
x=3/8m-5/4,m
Solving for m
m=10/3+8/3x,x
Answer:
6
Step-by-step explanation:
60 mins ÷5= 12. 12 x2=24
60 mins ÷6=10. 10x3=30
30-24=6