7. Tell whether each function is linear or nonlinear. Explain. (3 points)
Function B

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account. write an expression to represent the total amount in his savings account.

Ineed on this question me get the answer

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2