Question

Susie bought six pens at the office supply store and paid $4.14. Larry bought a dozen of the same pens at the same store and paid $8.28. If Kimberly goes to the same store and buys 20 of the same kind of pen, how much will she pay?

Answer 1

money/pen
$4.14/6 pen
$0.69/1 pen

20 pens x 0.69
$13.80