You multiply vectors and scalar simply by multiplying each component by that scalar:

Finally, you sum two vectors by summing the correspondent coordinates:

B) negative. Is the answer
Pretty sure it is nine. I hope I helped
2 , 6 , 17 , 47 , <u>108</u> , ...
t(n) = 2n^3 - 8.5n^2 + 15.5n - 7
Answer:
2758.653
Step-by-step explanation:
I'm super smart