Express the sum using summation notation, you!

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).

What dimensions can créate more than one triangle ?

Factor the polynomial expression x6 – x3 – 20