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Use simple interest to find the ending balance in the examples below:
a.) $210 invested at 8% for 7yrs
b.) $4000 invested for 3% for 4yrs
Use compound interest to find the ending balance in the example below;
a.) $1,250 invested at 8% compound annually for 2yrs
b.) $650 invested at 7% compound annually for 5yrs