Using the Pythagorean Theorem. 1  1. Learn the Pythagorean Theorem. 2  2. Make sure that your triangle is a right triangle. 3  3. Assign variables a, b, and c to the sides of your triangle.  4. Find the squares of a and 1  b. 5. Add together the values of a2 and 2  b2. 6. Find the square root of  c2.
A custodial fee is simply a flat fee charged by a bank or brokerage for administering or managing an IRA. Virtually every type of IRA is associated with some type of custodial fee, regardless of whether you choose a certificate of deposit, a mutual fund or some other type of IRA.
The second fee commonly associated with Roth IRAs is the expense ratio on mutual fund investments inside of the Roth. This charge isnât something directly charged to you by the Roth IRA provider. Instead each mutual fund you invest in while have an expense ratio that is charged to cover the fundâs expenses.