Answer:
(a) 
(b) nth term: 
Step-by-step explanation:
Solving (a)
Given

The first 3 terms.
When n = 1



When n = 2



When n = 3



So, the first three terms are:

Solving (b)
Given

Required
The nth term
The sequence is arithmetic.
So, first calculate the common difference (d)


The nth term is then calculated as:

Where

So:
and 


Collect like terms


Answer:
0-25=1
25-50=3
50-75=4
Step-by-step explanation:
Answer:

Step-by-step explanation:
...........
Answer:
Three million, one hundred fifty-two, three hundred eight
Step-by-step explanation:
Idk how to explain this but just look at the numbers, their values, and put them together.
Answer:
13.36
Step-by-step explanation:
18.60 - 5.24
=>13.36