The sides of ΔDEF are d, e, and f. If the lengths of d = 12 and e = 19, what are the possible lengths of f? ANSWERS: A) 7 < f < 19 B) 7 < f < 31 C) 12 < f < 19 D) 12 < f < 31

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Math each whole number with a rational, exponential expression

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.