Answer:
A=300(1+0.035)^t
A=300(1+0.035)^7 = $381.70
A=300(1+0.035)^21 = $617.83
Explanation:
It's pretty simple. Use the formula that I posted in the answer. And 1 will always be 1. The decimal comes from the percent. Remember to bring it two places to the left to make a fraction into decimal form. And the t is years. So you raise it to the power of how many years.
Hope this helps