Gina sells 3 times as many t-shirts as caps. The number of belts she sells is 15 more than ¼ of the number of caps she sells. She sells 288 caps How many fewer belts does Gina sell than t-shirts?

expression #3 is not equivalent. the others are.

c. (3,2,6) is the answer.

answer: 7

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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