Find the value of ? PLEASE HELP

How do i get my dad to stop making me gargle his pickle i want my mom to gargle my pickle not my dads

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).

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?