7) Find the present worth at i =10% per year for the cash flow shown below. $4,000 $3,000 $2,000 0 1 2 3 4 5 6 7 8 9 10 8) For the cash flows shown below, determine the value of x that will make the future worth in year 10 equal to $100,000 at interest rate of 10% per year. G=$1,000 ITTTT 0 1 2 3 4 5 6 7 8 9 10 9) For the cash flows shown in the diagram, find the future worth at end of year 10 at interest rate of 10% per year. $2,000 $1,000 11 0 2 6 7 8 9 10