A step function is shown on the graph. What are the domain and range? Domain:

Range:

A. all real numbers

B. equal to –4, 2, and 3

C. real numbers greater than or equal to –4

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