I would like to say some inspirational words so here: burp

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

What is the value of x when x + 7 = 21?

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