What's your name? ( My name is Sadia)

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

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5

The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?