Answer: 5 word per 25 sec
Step-by-step explanation:
1 word per 5 sec + 2 word per 10 sec +2 word +10 sec
Answer:
16
Step-by-step explanation:
a/(1-r)
Use the infinite geometric series formula.
Answer:

Step-by-step explanation:
Given


Required
Eliminate a
Multiply the first equation by -4

Add to the second equation

Solve brackets

Open bracket


At this point, a has been eliminated;
From the list of given options, the option that answers the question is 