Is this correct? if not can you explain why?

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

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.

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read