I need help(if you can read some of these it’s ok I can manage)

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

The table shows the number of hours orlando spent at football practice last week. select the appropriate numbers below to complete the model to find the number of hours orlando spent practicing on tuesday and friday.

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation