Please explain your answer too!

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).

If rt is greater than ba, which statement must be true ?

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?