It would take 9 painters working from 7am until 5pm to completely paint a building. Working at the same rate, how many additional painters would be needed to finish the work at 1pm

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

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Find the percent error of the measurement 4 cm