PLEASE I NEED HELP ASAP, I WILL GIVE BRAINLIEST Let q = ⟨15, –3⟩, r = ⟨–5, 8⟩, and s = ⟨10, –1⟩. What is r – q + 2s?

⟨0, 3⟩
⟨0, 9⟩
⟨40, 3⟩
⟨40, -13⟩

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