Answer:
d =7.6
Step-by-step explanation:

Height of triangle = 1/2 height of rectangle = 1/2 (16) = 8
answer
8ft (first one)
I do not understand ???????????????????
Answer:
B is correct
Step-by-step explanation:
-(-x) = x, because a double negative like this equals a positive.
Therefore, you are actually saying -x+x= 0 which is true.
Easily done! Just do -56 divided by -7 but just remember two negatives equal a positive. So your answer would be 8!