Please help me I would really appreciate it

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?

Lucy spent $165 in december using a new credit card. in january, she began paying between $15 and $25 each month towards her account balance.