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How Many Pay Periods Are There Each Semester?

If you get 13 out of 20 questions correct on a test, what percent grade do you get?

If you buy 212{“version”:”1.1″,”math”:”212″} yards of material for a costume, and then realize you need another 114{“version”:”1.1″,”math”:”114″} yards, how many yards of material do you need all together?

Convert to a decimal, rounded to the nearest hundredth:  711{“version”:”1.1″,”math”:”711″}

The shaded region in the figure represents what fraction of the whole rectangle? (Your answer must be in lowest terms.)

What is 7% of 1400?

Solve for x:  27x=14{“version”:”1.1″,”math”:”27x=14″}

A batch of cookies requires 34{“version”:”1.1″,”math”:”34″} cup of sugar.  How much sugar do you need for half a batch?

Sleep study. Based on the sleep study survival curve, about ______ of individuals in the severe apnea (>30 events/ hour) group had died in 10 years. The remaining subjects in this group who survived are considered to be ___________.  

Approval of the COVID vaccines by the FDA required they be tested in formal clinical trials. Using the COVID vaccines as an example… Identify the various phases of a clinical trial, and for each phase- describe the overall objective, the approximate number of subjects expected to be enrolled, and how the primary and secondary outcomes measured might evolve in each phase to achieve the overall objective. Assume there was no prior experience with mRNA-based vaccines.