1. 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? a.8,000 + 24x b.8,000 − 24x c.8,000 + 2x d.8,000 − 2x 2. avi and sergi are saving money to buy a game system. avi has $2 more than double the amount of money sergi has. together, they have $40. write an equation to determine how much money sergi and avi have together. a. x + 2x + 2 = 40 b.2x + 2 = 40 c. x + 2x − 2 = 40 d.2x − 2 = 40 isabella solved the following equation: 4x − 2x + 8 = 6(x + 4) step work justification 1 4x − 2x + 8 = 6x + 24 distributive property 2 2x + 8 = 6x + 24 combine like terms 3 −4x + 8 = 24 addition property of equality 4 −4x = 16 subtraction property of equality 5 x = −4 division property of equality which step has an incorrect justification? a. step 1 b. step 2 c. step 3 d. step 4