Twelve out of 18 students in Mrs. Marlin's class buys pizza for lunch on Fridays. at this rate, if there are 240 students in the entire school, how many students can be expected to buy pizza for lunch this Friday

First, divide 240 by 18 to find how many times 18 goes into 240

240/18=14 (rounded up from the original 13.3 repeating decimal because it has to do with people and you cant have a partial human and there is more than. 0 there)

then multiply the number of people who do get pizza by that number

12*14=168