What is 1 1/12+4 5/12 pls

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Which expression is equivalent to sq-80

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).