In pre-school, there are 6 children for every one teacher. in another pre- schoolthere are 24 children for every 4 teachers. determine whether the ratios of children to teachers are proportional in both pre-schools

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.