Marcy has $150 to buy packages of hot dogs,d, and hamburgers,b, for her booth at the carnival. At her grocery store she found packages of hot dogs cost $6 and packages of hamburgers cost $20. (a) Write an equation that can be used to find the possible combination of hot dog and hamburger packages Marcy can buy using her budget of exactly $150.(b) Solve the equation for d.(c) Solve the equation for b.