Evaluate for the given values of the variables.
#17. 8 + 3n for n = 6
#18. (8 + 3)n for n = 6
#19. 90 - 4d for d = 3
#20. 7x + 2y for x = 15, y = 20
#21. sbt. for a = 2. b = 4
#22. 2 + 5x second power. for x = 4
#23. 2 + (5x) second power. for x = 4
#24. (2 + 5x) second power. for x = 4

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