Someone explain to me how to do this geometry question

20*pi/3

Step-by-step explanation:

Arc length = Radius * central angle of the arc (in radians). The figure shows that the unit arc angle is 4*pi/3. Multiply that by the 5 ft results to 20*pi/3.

the barter

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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