An online retailer allows customers to write items on a scale from -5 to 5. an atom receives the scores below find the mean score write your answers as a decimal. 0, -1.25, -0.75, 4.5, -025, -4.25, -1.5

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