8.5b. 7a= 5a +3b -5a -5a 2a = 3b /2 a= 1.5b Solve by substitution and you get; 8.5b=8.5b Because of the lack of constants in the equation there isn't a definite answer.
C.) Mike is using the minimum recommended percentages for food, housing, and transportation. The costs are likely to exceed the expenses in each category.
