An urn contains 7 red marbles and 3 white marbles. three marbles are drawn from the urn one after the other. find the probability that the first two are red and the third is white.

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two