Answer:
the effective annual rate for Freda is 12.70%
Step-by-step explanation:
Freda investment
500 shares x $ 35 each x 70% margin = 12,250
Financing taken:
500 shares x $ 35 each x 30% = 5,250
Payment of the loan:
principal x (1 + rate x time)
5,520 x ( 1 + (0.0475 + 0.02) x 8/12) = 5,483.67
Holding return:

(500 shares x 37.5 - 5,483.67)/12,250 - 1 = 0.0830
Then we calcualte the annual equivalent rate to the holding return:


effective rate = 12.70 percent