Question

At a local print shop, 18 copies can be made for $3. At this rate, how much would it cost to make 72 copies?

Answer 1

Answer:

$12

Step-by-step explanation:

18 copies ------------ $3

1 copy -----------------   x     it is a rule of three

then 1x$3/18  = 0.167

Then 1 copies cost $0.167

72 copies = $0.167 x 72 = $12