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Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list