Samantha and luis are attempting to determine how many library books each seventh grade student checks out at the same time. samantha surveys every other seventh grade student leaving the library. she samples a total of 40 of the 200 seventh graders. luis samples 30 of the 200 seventh grade students at random in the school cafeteria. whose sample is the most random?

luis because his sample is taken from the population of all seventh graders

luis because he samples fewer students

samantha because she samples more students

samantha because her sample is taken from the population of students who use the library

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 - 2xdesmond 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