68 miles to 42.5 miles what is the percent of change?

Franco wants to double the volume of the cone. what should he do?

How do you find the distance of each number from the mean

The half-life of a certain material is 0.002 second. approximately how much of a 14-gram sample will be left after 0.004 second? a. 12 grams b. 3.5 grams c. 0.06 gram d. 7 grams