In the 9th and 10th grades at jefferson high school, there are 236 students. of those students, 121 are in 9th grade. of the 214 students who are right handed, 103 of them are in 10th grade. create the two way frequency table for this scenario

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%