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Andrej [43]
3 years ago
14

Barbara buys a box of pens for $4. For every additional box she buys, she gets a $1 discount. Which expression represents the to

tal cost of the pens, c, as a function of the number of boxes, b? c = f(b) = 4b – 1 c = f(b) = 4b + 1 c = f(b) = 3b + 4 c = f(b) = 4b + 3 c = f(b) = 4 + 3(b – 1)
Mathematics
1 answer:
Andreyy893 years ago
7 0
$4 x c - 1
I don't know reallly
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