How do you graph a line when your equation is written as a fraction?

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).

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

92ft long and 48 wide resurface 2.75$