A sporting goods store is having a 15% off sale on all items. Which functions can be used to find the sale price of an item that has an original price of X? You may choose more than one correct answer.
y=.85 x
Of(x) = 1.15 x
Sale - Original - 15
f(x) = x- 15 x
Sale = Original - 15(Original)

step-by-step explanation:

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13.46

step-by-step explanation:

16.80 x .20 = 13.46

d.) 48 units

step-by-step explanation:

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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