The windows of a downtown office building are arranged so that each floor has 6 fewer windows than the floor below it . if the ground floor has 52 windows, how many windows are on the 8th floor ? a. 10 b. 8 c. 4 d. 6

The given situation described above is that of an arithmetic sequence with first term (a1) equal to 52 and common difference (d) equals -6. To find the nth term, use the equation,
                                         an = (a1) + (n - 1)(d)
Subsitutitng the known values,
                                         a8 = 52 + (8 - 1)(-6)
The answer to a8 from the equation is 10.