Jackie is buying buttons for a craft project. She needs 38 buttons to finish the project. The buttons come in packages of 8 and cost $3.44 per package. Part A: How many packages does Jackie need to buy? Show your work.

Jackie needs to buy packages.

Part B: What is the cost of each button she bought? Show your work.

Each button costs .

step-by-step explanation:

*calories burned = (weight)(calorie factor)*

calories burned = 180 (0.65)

calories burned = 117

the calories he used up is 117, which is 65% of his weight.  

-1

step-by-step explanation:

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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