Need help please help me answer these 3 questions. The top question says, Skills are acquired, improved and judged by performance. There are two key criteria:

Do you want brainliest + free points? answer this question correctly. why is it important to make sure a police report is properly filed after a collision? a. it's the official account of what happened. b. if you have the police file a report, you can't be fined. c. if you have the police file a report, your insurance won't go up. d. if there's no report, an auto repair shop won't fix your vehicle.

How can firms use marginal analysis to determine the price of a product? a) profit maximization can occur when the marginal cost exceeds the marginal revenue. b) the total cost of production can determine the individual unit price of a product. c) marginal analysis can be used to determine at what price profit maximization occurs. d) firms can calculate the marginal cost of a product and set the price lower than the cost.

Hurry: the angle measures associated with which set of ordered pairs share the same reference angle? (-square-root 3/2, 1/2) , (-1/2, -square-root 3/2) (1/2, -square-root 3/2) , (-square-root 3/2, 1/2) (-1/2, -square-root 3/2), (1/2, square-root 3/2) (square-root 3/2, 1/2) , (1/2, square-root 3/2)