John has 12 marbles of different colors, including one red, one green, and one blue marble. in how many ways can he choose 4 marbles, if exactly one of the chosen marbles is red, green, or blue?

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship