A person standing on level ground is 3,020 feet away from the foot of a building. The angle formed at the point where the person is standing by the top of the building and the ground is 40°. To the nearest foot,
find the height of the building.

Which expression is equivalent to? assume x > 0 and y > 0.

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

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