Abag contains 8 yellow marbles, 16 red marbles, 3 blue marbles, and 3 black marbles. what is the probability of drawing a black marble out of the bag?

Afarmer sells 9.5 kilograms of apples and pears at the farmer's market. 4/5 of the weight is the apples and the rest is the pears. how many kilograms of pears did she sell at the farmers market

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.