Naomi's parents want to have $50,000 saved for her college education. if they invest $20,000 today and earn 7% interest compounded annually, about how long will it take them to save the $50,000?

The correct answer would be "convenience"

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.