Reid's Hardware discounts all riding lawnmowers 9% to customers paying in cash. If Trey paid $1,517.74 in cash for a riding lawnmower, which of the following equations can be used to determine the original price of the lawnmower?

(Let x represent the original price of the lawnmower and y represent the discounted price.)
A.
y = 1.09x
B.

y = 0.91x
C.
y = 1.9x
D.
y = x - 9x