100 people signed up for the experiment. We number them all from 1 to 100. We use a computer to generate four sets of numbers in order to assignment people to take 25mg, 50mg, 75mg or get the placebo. This is an example of:

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? \ 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x