If infinity n = 1 an = s, infinity n = 1 bn = t, then infinity n = 1 an + bn = s + t. if infinity n = 1 an = s, alpha c, then infinity n = 1 alpha an = alpha s.

it's d

step-by-step explanation:

a

step-by-step explanation:

the denominator cannot be the same as one of the factors.

8 denominator times 2 denominator = 16

and 7 numerator time 11 = 77

77/16= 77/16 ( they cannot be further simplified)