One characteristic measured about high schools is the percent free lunch, which is the percentage of the student body that is eligible for free and reduced-price lunches. The top 100 schools, grouped according to their percent free lunch, is as follows.

If stratified random sampling with proportional allocation is used to select a sample of 25 high schools, how many would be selected from the stratum with a percent-free-lunch value of20x<30? round up to nearest integer

Percent free lunch for 20_