Fill in the blanks in the following table, given that a is the first term, d the common difference and a_n the nth term of the AP: | a | d | n | a_n | |---|---|---|---| | 7 | 3 | 8 | ... | | 18 | ... | 10 | 0 | | ... | -3 | 18 | -5 | | -18.9 | 2.5 | ... | 3.6 | | 3.5 | 0 | 105 | ... |