Given the triangle XYZ below, what ratios are equal too 3/5 ​?

Acar dealership pays you 5% commission on your first $10,000 on car sales and 8% commission on the sale amount over $10,000 if you sold a $12,000 car how much is your commission

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Which expression is equivalent to -12(3x-3/4)