Help please and please don’t get it wrong

Dr. cooper just started an experiment. he will collect data for 8 days. how many hours is this

Solve the equation x/4 - 5= -8 -27 -12 -7 12

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