E = IR
R = E/I
You have to divide I form R
240 days is 4 times the half-life, which means that a sample of 1000 mg will decay to

after 240 days.
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Answer:
Check the explanation
Step-by-step explanation:
Total utility is the overall satisfaction that a particular consumer received from consuming a given overall quantity of a good or service, To calculate the value of total utility economists utilize the following basic total utility formula: TU = U1 + MU2 + MU3
Kindly check the attached image below to see the step by step explanation to the question above.