The class was taking a survey of hair color for science class. Of the class, 5/12 had brown hair. Of the remainder of the class, 4/7 had blonde hair. If the rest had red hair, what percentage of the class had red hair? I did 5/12 x 4/7 which is equal to 5/21, but I was wondering how do I draw it as a tape diagram.

Mercury poisoning is dangerous overload of mercury within the body. a major source of mercury within the body, a major source of mercury poisoning is consuming fish that contain mercury. certain fish are more prone to having higher levels of mercury than others. the pie chart shows the distribution of four breeds of fish at a hatchery. the hatchery has approximately 6,000 fish. a biologist from the centers for disease control and prevention randomly test 5% of each breed of fish for mercury content. her findings are shown in the following table. based on the biologist's findings, if a single salmon is randomly selected from those that were tested, what is the probability that this particular fish would have a dangerous mercury level? a) 0.001 b) 0.004 c) 0.02 d) 0.08

Why do interests rates on loans to be lower in a weak economy than in a strong one

How can you tell when x and y are not directly proportional?