Following her 18th birthday, Madison began investing $48 at the end of each week in an account earning 4% per year compounded weekly. She plans to continue making weekly investments until she turns 68. If she had waited until she turned 59, how much would she have to invest weekly in order to have the same retirement nest egg at age 68? Round to the nearest cent. (Hint: Find the size of the retirement nest egg, then use that to solve for CF under the shorter investment scenario)