Suppose you have a bag of red, blue, and yellow marbles. if the probability of picking a red marble is1/6 and the probability of picking a yellow marble is 1/2, what is the probability of picking a blue marble?
1. 1/4
2.1/3
3.2/3
4.1/8

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?