find the sum of the 20th term a=6 and r=2/3

1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7 a.143 b.136 c.140 d.13...

find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19

Find the 20th term of an arithmetic sequence with a=1 and d=1/2

Find the 20th term of the following sequence. -6, -4, -2, 0, ... 32 44 46 I did t...

find the 20th term in the expansion of (a+b)^22

Find the 20th term for 5,-5,-15,-25

find the 20th term of the sequence 25, 23, 21, 19, 17

what is the 20th term of the sequence that begins -3,6,-12,24...?

Find the sum of the 20th term of the Arithmetic progress 16+9+2+(-5)+__________

Find the 20th term of the sequence-7,-3,1

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