Answer:
198
Step-by-step explanation:
t20=a+19d.......1
t40=a+39d.......2
t2=a+d=2.........3
According to ques,
t40-t20=a+39d-(a+19d)=40
or,20d=40
or,d=2
Now ,putting the value of d in equation 3,we get,
a=0
t100=a+99d
=0+99×2
=198
Answer:
Step-by-step explanation: use PEMDAS parenthesis first but don't add the numbers with x with a normal number, add x number with x number and add normal number with normal number but parenthesis first good luck
Answer:
45 + 36c
Step-by-step explanation:

Hope this helps.
Answer:
13+8x
Step-by-step explanation:
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