Simplify to create a equivalent expression.
5(10k+1)+2(2+8k)
a.)66k+9
b.)64k+9
c.)66k+54
d.)64k-9

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Stephen thublin invests $1,000,000 in a 45-day certificate of deposit with 6.55% interest. what is the total interest income from the investment?