A 4% salt solution is mixed with an 11% salt solution to obtain 35 gallons of 7% salt solution? how many gallons of the 4% salt solution are needed? How many gallons of the 11% salt solution are needed?

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