Find the output for f(x) = −3x + 4 when x = −5. Show every step.

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).

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?