On a summer day, the heat of the land heats the air, causing it to rise and spread before cooling over the ocean, creating a breeze. How is thermal energy conducted when this happens? through convection

through conduction

through radiation

through refraction

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297