Classify which type angle it is

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 is the absolute value of the complex number -4-sqrt2i

Find the zeros of each function. f(x) = x^2 + 5x - 6