Ateacher would like to estimate the percentage of her students who play chess. which method should the teacher use to select the sample?

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points