The dry cleaning fee for 3 pairs of pants is $18.
a. what is the constant of proportionality?
b. how much will the dry cleaner charge for 11 pairs of pants?

a. 1 pair of pants is $6

b. $66 for 11 pairs of pants

a. 18/3 = 6

b. 6 × 11 = 66

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72