7th grade math question urgent!

if a and b are opposites, what can you say about the locations of a and b on the number line? group of answer choices a is to the right of b. a is to the left of b. a and b are the same distance away from 0. there is not enough information given.

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save