zach invested $50 and was able to triple his money in two years. Kayla also began with in investments, and was able to cube her money in two years. Who had more money after two years? Explain

Kayla

Solution and Reason:

Zack invests $50 and triples return in two years.

Money = m = $50

Z = 3m (in 2 years)

Z = 3(50) = $150

Kayla invests $50 and cubes her return in two years.

K = m³ (in 2 years)

K = (50)³ = $125000

K >> Z

1. 5/82.95% is better than 7/8