What are the solution(s) to the quadratic equation 50-X2=0?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

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