Model each situation below with an equation. Select the correct equation for each situation. Then solve each problem.
a. A company employs 72 workers. It plans to increase the number of employees by 6 per month until it has twice its current workforce. How many months will it take to double the number of employees?
b. Nathan’s fish tank holds 144 gallons of water. To clean the tank, he drains the water at a rate of 6 gallons per minute until the level is two-thirds its original level. How many minutes does it take to drain the tank for cleaning?
In a recent NFL game, the Green Bay Packers scored 14 points less than the Tennessee Titans. Write and solve an equation to find the total points the Tennessee Titans scored.