2 unit multiplier help?

Question

Use 2 unit multipliers to convert 3 miles to inches; and, use 2 unit multipliers to convert 5 square meters to square centimeters.

Answer 1

1 foot = 12 Inches

1 Mile = 5280 feet

5280 x 12 = 63360 inches in a Mile.

63360 x 3 = 190080 inches


the answer is: 3 Miles equals 190080 inches

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100² = 10000 cm

10000 x 5 = 50000sq cm

The answer is 50000 sq cm

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Answer 2

I haven't heard the term "2 unit multipliers", but in the dark ages when inches existed there were 63360 of them in a statute mile, so multiply that by 3.

There are 100 cm in a m, but for square units you must square the multiplier, so multiply 10000 by 5.

Answer 3

3 miles = 3 x 1000 x 1.6 x 100 cm = (3 x 1000 x 1.6 x 100)/2.54 inches

5 sq m = 5 x 100cm x100cm = 50000 sq cm