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(1 point) Problem 7 - Equations of Value Tonya agrees to pay an amount of 3X at the end of 4 years and an amount of X at the end of 9 years. In return she will receive $2000 at the end of 5 years and $6500 at the end of 11 years. At an effective annual interest rate of 5%, find the size of Tonya's second deposit. (1 point) Problem 10 - Equations of Value Sheena has the following two options for repaying a loan: (i) A payment of 3000 at the end of the first year and a payment of 8000 at the end of the 9th year (ii) A single payment of X at the end of the 5th year At an interest rate of 3% compounded semiannually, calculate the size of the single payment. X=