Answer:
R(n)=100,000(0.5)^n
Step-by-step explanation:
1/10 of 30000 is 3000 because 30000 divided by 10 is 3000.
Normally 7 envelopes but on rare occasions, there may be more due to If the packages are filled with Envelopes. Also depending on if the 7 packages are boxes of envelopes, and in that case, 140 envelopes times 7, which would be 980 envelopes in the 7 packages. 140 * 7 = 980.