Amerry-go-round has a radius of 10 ft. to the nearest tenth of a foot, what distance does the merry-go-round cover when it rotates through an angle of 72°?

for my first try, i got 62.9 as my answer, and it was marked wrong. i did this a second time, and got 12.6. i would like to check with anyone else to see if i got the answer right.

the answers for this question were:

62.9, 12.6, 25.1, or 125.7

12.6

Step-by-step explanation:

The distance covered by the merry-go-round if makes a complete circle (360°) is its circumference:

circumference = 2*π*radius = 2*π*10 = 62.8 ft

This distance corresponds to 360°, for 72°:

62.8 ft / x ft = 360° / 72°

x = (72/360)*62.8

x =  12.6 ft

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)