Sara puts $4000 into an investment yielding 5% annual simple interest; she left the money in for five years. How much interest does Sara get at the end on those 5 years?

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.