What is 5 to the second power plus 4

How is working backward similar to solving an equation?

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-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