10,171.07 pesos
To every US dollar, it equal 18.84 pesos.
The family would buy the three pairs of shoes for $26.31 because you have to divide $52.62 in half since they bought half the amount of pairs of shoes that are given in the sale.
-5
a^2-25=0
a^2=25
take the square root of both sides
a=5, and -5
A^2 + b^2 = c^2
9^2 + b^2 = 15^2
81 + b^2 = 225
225 - 81 = b^2
144 = b^2
square root of 144 = 12
b = 12