Simone is a competative gymnatist and practices 5 times a week to prepare for the Olympics. In one month, she practices for 1 2/3 and hours, 5 days a week. The next week, she practied 3 3/4 an hours for 5 days a week. The third week she practiced 5 5/6 and hours for 5 days a week. Each week Simone increased her practice time per day. How much did she increase it from the first week to the third week?

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

Determine whether the angles in each given pair are coterminal. 744°, -336°

What is the number 321,000,000 in scientific notation? also what is the number? ?