Find the missing term: 4x + x + = 7x

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years