- the formula of n-th term of an arithmetic sequence.
We have:
Answer: C. 77.4
A=1
45(5+25)a2=1
4·5·(5+2·5)·122≈247.74875
247.75
4/8 just multiply each number by 4!
U need to divide 100 by the number of what’s given
There are 3 more dots above the 13 than are above the 12, so the appropriate choice is ...
... A. 3
