A local department store estimates that 10 percent of its customers return the merchandise they purchase.

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

answer4 to the second power is 16

and 4 to the third power is 64,

exactly you go it

step-by-step explanation:

could you provide figure.