If 5/8 of the people in a water aerobics class are over age 61/4 of the people are under age 40,what fraction of the people in the class are wither over 65 or under 40

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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.

Do you want free points and brainliest? answer this correctly and i got you : ) when scanning the road, glance away from the road ahead for a. at least one second b. no more than one second c. at least two seconds d. no more than two seconds