A dart hits the circular dartboard shown below at a random polnt. Find the probability that the dart lands in the shaded circular region. The radius of the dartboard is 12 in, and the radius of the shaded region is 5 in.

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.