Find the sum of the arithmetic sequence. -10, -7, -4, -1, 2, 5, 8 select one: a. 11 b. -70 c. 0 d. -7

d -7

Step-by-step explanation:

The sum of an arithmetic sequence Sn whose first and last terms are known may be expressed as

Sn = n/2(a + l)

where a and l are the first and last terms of the arithmetic sequence with n number of terms

Thus for the  given sequence, the sum Sn is

S₇ = 7/2 (-10 + 8)

Since there are 7 terms in the sequence

= 3.5 * -2

= -7

answer:   14

step-by-step explanation:          

pu you stank bo u ugly bo lol

3, 12, 48, 384, 1536, 6144, 24576, 98304

step-by-step explanation:

just keep timing it by 4.