Martin has a gift card to a coffee shop. each day he buys the same coffee. the table shows the amount remaining on the gift card on different days.

which equation represents the situation?

martin’s gift card
days
2 4 5 7
amount remaining 24.10 18.20 15.25 9.35

a.
y – 9.35 = −2.95(x – 7)

b.
y – 18.20 = 2.95(x + 4)

c.
y + 15.25 = −2.95(x + 5)

d.
y + 24.10 = 2.95(x – 2)

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