Advance Algebra. Plz HELP!

**write an equation of a periodic function that has:**

a.) an amplitude of 200 units.

b.) been moved to the left 20 degrees

b.) been moved down 15 units

d.) a period of Pi/4

**A parabola has intercepts at (-3,0), (1,0), and (0,6). find the exact equation for this parabola. Write the equation in both standard and graphing form**

**I just placed $1000 in an account which earns 8%per year compounded annually. ow much money will be in the account in 10 years? how long will it take for this account to have $5000 in it?**

__I cant seem to figure these out...__

Nvm i got it