1. kelly bought 3 times as many pencils as pens.
she spent an equal amount of money on each type.
each pen cost $4 more than a pencil.
how many pens did kelly. buy if she paid $66 for the pens ?

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.