Ihave to make a 4x4 grid using 5 colors. 4 squares are blue, 3 red, 3 green, 3 yellow and 3 white. they have to be arranged so that no two of the same color are in line vertically, horizontally or diagonally.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

The cost for an uberi is $2.50 plus $2.00 mile. if the total for the uber ride was $32.50, how many miles did the customer travel?