Answer:
12
Step-by-step explanation:
1.08 1.08 divded by 0.09 equals 12
Answer:
10 in
Step-by-step explanation:
Old proportions:
2 x 3
New proportions
h x 15
Assuming the painting has been increased by a constant scale factor.
Where x is the unknown scale factor, and h is the height after it has been enlarged.

Rearrange second equation:

Substitute:

Answer:
$55
Step-by-step explanation:
Let b represent the original bill. The problem statement tells us ...
20% × (b -6) = 9.80
Dividing by 20% gives ...
b -6 = 49.00
b = 55.00 . . . . . . . add 6
Their bill before the discount was $55.00.
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<em>Comment on the tip</em>
It is generally considered better form to tip on the basis of the original bill before coupons and discounts.
I'm pretty sure your answer would be B but I would have to say to try and get another answer to back it up cause I am not 100% sure