Abag contains 8 green marbles , 5 red marbles and 3 blue marbles. find the probability of drawing a blue marble.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?