The area of a blackboard is one 1 1/3 yd.² a poster’s area is 8/9 square yards. find the unit rate and explain, in words, what the unit rate mean in the context of this problem is there more than one unit rate that can be calculated how do you know?

I’m stuck on this i don’t understand.

When turned about its axis of rotation, which shape could have created this three-dimensional object?

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.