Which table shows data with variability?

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

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