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I will mark Brainliest for first and correct answer. PLEASE NO LINKS

Mark checks the cost of pens at several stores to determine the best deal. Which choice gives the lowest cost per pen?
a) $7 for a pack of 5 pens
b) $15 for a pack of 10 pens
c) $18 for a pack of 15 pens
d) $48 for a pack of 30 pens

Please also explain how you got the answer even better the working

Respuesta :

maggielee724

Answer:

c) $18 for a pack of 15 pens

Step-by-step explanation:

calculate the cost for 1 pen then compare

a) 7 ÷ 5 = 1.4

b) 15 ÷ 10 = 1.5

c) 18 ÷ 15 = 1.2 (has the lowest cost for a pen)

d) 48 ÷ 30 = 1.6

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