Darnells's car used 8 gallons of gasoline to travel 340 miles. after a mechanic worked on the car it used 7 gallons of gasoline to travel 350 miles. if the price of the gasoline was approximately $4.00 a gallon, to the nearest cent per mile, did it cost to run the car after the mechanic worked on it

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

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?

Joey is asked to name a quadrilateral that is also a rhombus and has 2 pairs of parallel sides.should be his answer