If the sun is 56° above the horizon find the length of the shadow cast by a building 84 feet tall round your answer to the nearest 10th

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

For each proportion find the unknown number x 1/5/8=×/15

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15