Why is 12 * 10-8 is NOT a correct representation of scientific notation?

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

What are the sotions to the quadratic equation 9x^2=4

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.