moira invested $10,000 and earned 5% annual interest on her investment. write an equation that models her money as a function of time. If this rate continues, how much money would she have after 5 years?

You do not say if it is simple interest of annual compounded

if simple:
10,000 + 0.05(10,000)(5) = 12,500
if compounded
10,000 (1.05)^5 = 12,762.82