this formula is take straight from my professors notes

this answer is incorrect

did I do something wrong with the voltage ripple?

 

nevermind, figured this one out also.

 

i had to find the value of Rc = 3.56ohms

then use that to find C=2.8uF

 

Glad you got it.

Could you post future questions as text (type them in)? I am running at a little too high of resolution for my age, and your graphic makes the text difficult to read at a bit over 1.25" tall for the entire top part.