Dina started chores at 8: 15 am and finished at 9: 05 am it took her 30 minutes to clean her room and she spent the rest of the time bathing her dog. how long did dina spend bathing her dog ?

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.