3. a middle school yearbook committee has 35 members. there are 7 more girls than boys. write a system of linear equations, define your variables, and solve the system to find the number of boys and number of girls.

well,suppose the number of boy is x,then the number of girl is y=x+7,then the number of girls and boys is 2x+7=35.so x is 14.it means the number of boy is 14,girl is 21.

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i