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At 6 1/2 cents per pound of string beans how much does 7 pounds cost

Describe the graph of 3x+2> 2 and 3x< 6

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