Indicate a general rule for the nth term of this sequence.
12m, 15m, 18m, 21m, 24m, . .
choices:
a.) an = 3mn + 9m
b.)an = -3mn – 9m
c.)an = -3mn + 9m
d.)an = 3mn – 9m

what is the question?

step-by-step explanation:

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)