Mark bought groceries two days during the week. .
Mark purchased $15.00 worth of groceries and paid $17.10 after taxes on Monday.

Mark paid $51.30 after taxes on a purchase of groceries that cost $ 45.00 on Friday

Which equation models the relationship between y, the cost of the groceries after taxes,
and x, the cost of the groceries before taxes?

A. y=0.15x
B. y=1.14x + 0.15
C. y=1.14x
D. y=.015x + 17.10