What is the slope of this graph?

a. -1/4
b. -4
c. 4
d. 1/4

Solve for x, y, and z. show all steps.

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).

Is this a polynomial function? i need to know asap