It is 25 because the sequence is adding 4 each time so if you add 4 to 17 you get 21 then add another 4 and you get 25
A because coplanar means in the same plane.
10 cookies since 15 are both and 45 - 15 = 30 and 30 + 40 = 70 then 80 - 70 = 10
<h3>the answer is different</h3>
