The answer to the question is
f(x)= 4x - 10
Answer:
540
Step-by-step explanation:
-10 * -6 = 60
60 * 9 = 540
When you multiply two negatives, the negative sign cancels out, and the number becomes positive.
Answer:
increase
Step-by-step explanation:
if your number gets bigger it's increase
if it gets smaller it's decrease
Solution:
The following information about the chain email can be Written as follows:
1 Person Email →→6 Persons (E-mail) →6² Persons (E-mail)→6³ Persons (E-mail)+.........few Days
As you can see the number of email sent starting from person 1 to 6 persons to 36 persons to 216 persons, forms a Geometric pattern.
So, Sum of the Series = 1 + 6 + 36 + 216 + 1296 +......+ for n days
= 
Formula for n terms of a geometric series

For, Common ratio (r)≥1
Sum of above geometric series up to n terms 