Could i get some help 14m+2n-5(m-4n)-6n

How do i do this activity, is appreciated

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

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?