Answer:
Step-by-step explanation:
For the first question
The missing term is 30
because 5 is being added to every term .
So last known term is 25 and by the sequence we can see that 5 is being added to the last term to make the next one
25+5=30
For the second: Pay attention
Let's say you want to find the nth term of the sequence. (Eg. what will be the 50th number of the series just like 10 is the 1st term of the sequence)
For nth term the formula is :
An= d.n+a1-d
where d is the difference '5' in this case
n is the nth term
a1 is the first term (10 in your case) and again d is the difference of number which is 5
so
an=5n+5 (by substituting values)
now for finding 100th term put 100 in place of n
a100=5(100)+5
a100=505
100th term is 505
