Question

A set of six pans cost $2.34 a set of 20 pens is sold at the same unit price what is the cost for 20 pens

Answer 1

you set up a proportion of 2.34/6=x/20
then you cross multiply and get 6x=46.8
then you divide by 6 to isolate x and you get 7.8
so your answer would be $7.80