Patience while we update our system. BIG IDEAS MATH
ELIZABETH HELMER
a
#20i
DIG DEEPER! The expression p - 15 gives the amount (in dollars) you pay after using the coupon when the original amount
of a purchase is p dollars. The expression 30 + 6n gives the amount of money (in dollars) you save after n weeks. A jacket
costs $78. Can you buy the jacket after 6 weeks?
i
Coupon
Good for $15 off any
purchase of $75 or more
You
buy the jacket after 6 weeks.
Explain.
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