Which table represents a linear function?

Which segments are congruent? o jn and ln o jn and nm o in and nk onk and nm

Which of the following is the shape of a cross section of the figure shown below

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