Does anyone here have glasses? If so, nearsighted or farsighted? What degree(I'm -2.5 nearsighted).

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)