Given:

Sol:
Area of picture is:

If the cost $10 per square inch then price of 15 square inch is:

If the quadruple of dimension that mean:

So area is:

So price is:
Answer:
12 minutes
Step-by-step explanation:
The radius is half the diameter, so 18*2 = 36 inches
The diameter is 36 inches.
Divide the diameter by the rate, 36/3 = 12 minutes
Your answer is 12 minutes
First, second, and last box are correct
Answer:
1)Percent increase=(increase in amount/original amount)100
2)650/900*100
650/9=72.2%
Answer:
19*7=133
Step-by-step explanation: