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You deposit all of your graduation money, 2,560 , into an account earning 3.5% interest, compounded annually. You want to let it sit, no deposits or withdraws, while you are in college for 4 years. How much will you have at the end of 4 years?Find how long it takes a 1500 investment to earn 800 interest if it is invested at 7% interest compounded quarterlySusan is riding her bicycle. She takes 7 hours to ride 44.8 kilometers. What is her speed?Mary is 10 years older than her sister, Janice. In 4 years Mary will be twice as old as Janice. What is Janice's age?The sum of two numbers is 32. Their différence is 22. Find the two numbers.