Someone please help, what’s the answer to this??

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

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).

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse