A family ordered some candy bars and bags of chips for snacking the number of candy bars was twice as much as the number of bags of chips if the family spent a total of 5.50 how many bags of chips did the family buy if each candy bar is $1.00 and each bag of chips is $0.75

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?