Two bottles of cough medicine are the same size. the cost of the store brand is two thirds of the cost of the national brand, if you have s to repersent the cost of the store brand and n to repersent the cost of the national brand.

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders