Select the proper placement for parentheses to speed up the addition for the expression 4 + 6 + 5 a. (4 + 6) + 5 b. (5 + 6) + 4 c. 4 + (6 + 5) d. (5 + 4) + 6

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.