Please help me this is really confusing here's the question

Sasha invests $1000 that earns 8% interest compounded annually. write a function that describes the value, v, of the investment after t years.

Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?