Why is it important to choose a bank that is a member of the fdic?

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

100 points, hi, i’m not sure how to get the equation from the graph and table.