Can someone please help and if you’re correct i’ll give brainlist

Plz me plz i will give a brain just plz

100 points, hi, i’m not sure how to get the equation from the graph and table.

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).