If each sandwich costs 3 times the amount of a bag of chips and the sandwich is 6 dollars, the chips are 2 dollars. Casey bought 5 sandwiches and spent $30 dollars on sandwiches. Since the total was $42 dollars you have $12 dollars left to get your total of $42. 2x6 = 12 so therefore Casey bought 6 bags of chips.
A=automobile S=SUV 0.4A+A=98 (to change a percent to a decimal you move the decimal point two places to the right) 1.4A=98 (I combined like terms) A=70 (divided each side by 1.4)
