A zoo has 525 animals there are 5 zookeeper every 75 animal calculate the number of zookeepers that work in the zoo?

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?