21. college enrollment information about students' choices of majors at a small
college is shown in the table. in how many years will there be 2 times as many
students majoring in engineering than in business? in how many years will there be 2 times as many students majoring in engineering than in biology? write an equations with variables on both sides for part a and b. major: engineering 120 (started out)- 22 more each year business 105 (started out)- 4 fewer each year
biology 98(started out)- 6 more each year