Describe the four most important finance statement ratios and the four most important operating ratios.

Patrick is jumping rope to trade for his next boxing match. he learned the correct way to jump rope when he was a member of his schools wrestling team. which training principle does this scenario represent

For your safety and the safety of the children, list 3 precautions while babysitting.

[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.