7. Yvonne put $4,000 in a savings account. At the end of 3 years, the account had earned $960 in simple interest
a. How much does she have in her account at the end of 3 years?
b. At what annual simple interest rate did the account grow? Show your work.
c. How many more dollars would she have in her account if the interest rate were 1% greater? Show your work.
8.The graph below was drawn with output on the vertical axis and input on the horizontal axis. What does this graph indicate about the relationship between the input and the output?
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