Which expression should be used to estimate the answer to this story problem? travis planned to watch 4 dogs while his neighbors were out of town for a week. each dog would need to eat 612 ounces of dog food. how many ounces of dog food were needed for all the dogs? a. 600 + 4 b. 600 – 4 c. 600 × 4 d. 600 ÷ 4

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

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?