For valentine's day, kelsey got a box of 24 chocolates. after one week, she'd eaten 5/8 of them. how many chocolates had kelsey eaten?

One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?

The sum of five and a number n is at least 12

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample