Marta can clean a house in 1 hours. it takes her daughter 1 hr and 30 mins to vacum the house. how long would it take if they worled together?

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?