Brett can plow out all the driveways on his street with his new four-wheel-drive truck in 33 hours. using a snow blade on a lawn tractor, his neighbor can plow out the same number of driveways in 77 hours. how long would it take them to do the work together?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

Which number line correctly shows 0.8 + 0.3?