Need your help in math

A collection of trucks are set up into 10 rows. The first row has 1600 trucks, and each row after that one has 15 less trucks than the preceding row. How many total trucks are there in the 8th row?

A. 1585
B. 1670
C. 1345
D. 1495

a = 1600 and d = -15
nth term = 1600-15(n-1) = 1615-15n
8th term = 1615-15*8 = 1495
Answer D

D. 1495
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1600 - 7*15 = 1495 --> Answer

D.

D.1495