Write 77.5% as a fraction or mixed number in simplest form

I’m stuck on this i don’t understand.

Find the value of a. the diagram is not to scale. a quadrilateral is drawn. the upper and lower sides are parallel. the interior angle in the upper left corner is labeled a degrees. the angle in the upper right corner is labeled 113 degrees. the angle in the lower right corner is labeled b degrees. the angle in the lower left corner is labeled 36 degrees. a. 36 b. 144 c. 54 d. 126

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?