How do I solve (y+10)^2

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

An internet company charges $8.95 per month for the first 3 months that it hosts your web site. then the company charges $11.95 per month for web hosting. how much money, in dollars, will the company charge for 8 months of web hosting?

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).