For the data set 28, 28, 30, 30, 30, 40, the mean is 31. What is the mean absolute deviation?
O A. The mean absolute deviation is 6.
B. The mean absolute deviation is 18.
O C. The mean absolute deviation is 3.
O D. The mean absolute deviation is 31.

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. how many cups of trail mix will she make if she uses 8 cups of raisins?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7