Use the given recursion and starting value of
to find
:

Do the same for
and
:


(That's not a mistake. This just tells you that the 2nd and 3rd iterates are very close together and have at least the same first 5 digits after the decimal.)
I forgot how to do this in middle school_
Answer:
Look at explanation.
Step-by-step explanation:
For the first four, take the first term and add the common difference to it to get the second term. Then add the common difference to the second term to get the third term, and so on until the 5th term. If the common difference is negative, you subtract it instead of adding it.
Answer:
x=17
Step-by-step explanation:
53+(2x+3)=90