Martin jogged 45 minutes everyday for 21 days how many minutes did he jog over the 21 days

Multiplying an even number of negative numbers gives an answer that is choose from:

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).

[15 points, algebra 2]simplify the complex fraction and find the restrictions.