D.
This is because it is a question that involves doing actual math rather than just asking and getting an answer.
Answer:
1. is -6b+4 2. is n= -6
Step-by-step explanation:
Answer:
G
Step-by-step explanation:
The sum will be:
sigma(i = 1 to infinity, 30*(2/5)^i)
->

Which is equal to 30/(3/5) = 50
Answer:
Step-by-step explanation: