Answer:
1/2 + -5d
Step-by-step explanation:
Notice that the above sequence is arithmetic because the common difference: d is constant.
d = second term - first term.
= 15 - 9
= 6
The general term of an arithmetic sequence is,
a_{n} =a_{1} +(n-1)d
Where , nth term = 
= First term
and d = common difference.
The given sequence is: 9, 15, 21, ...
Here a_{1} = 9,
d = 6
We need to find the 31st term. So, n = 31.
Next step is to plug in these values in the above formula. Therefore,

= 9 + 30* 6
= 9 + 180
= 189
So, 31st term of this sequence is 189.
Hope this helps you.
2.48
..........that is the answer
Answer:
Step-by-step explanation:
Well first you have to see how many times 0.025 goes into 62.54. You can find that out by multiplying 0.025 by a number you will think is equal to 62.54. Then if the answer is too big try to decrease the number you multiplied it with. If its too small try to increase the number you multiplied it with.
(THE ANSWER IS 2501.6)
There is no picture below lol