Step-by-step explanation:
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Answer:
-4/5
Step-by-step explanation:
2/5 ÷ -1/2
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2/5 * -2/1
-4/5
We know it begins at 100. If we use a*b^t, then 100 is our a. 100*b^t. We can now divide 480 by 100. This is 4.8. 4.8 is b. f(t) = 100(4.8)^t