A biologist recorded the population growth of two species of frogs in a pond area starting in 2010. The first species started with

A biologist recorded the population growth of two species of frogs in a pond area starting in 2010. The first species started with 42 frogs and increased by 6 frogs per year. The second species started with 30 frogs and increased by 8 frogs per year. In what year were the population of the two groups of frog equal