Options in 3rd and 4th questions are wrong!. Hope it helps :)
-9(2)+4=-16 you do -9 times 2 which is -18 then you subtract that to 4 which you get -16. hope this helps!
Are you being asked to complete the question so that it would make sense? because it would make sense to me to be either a or b
if not, then could you please specify?
A circle with a radius of 15.4 meters
The surface area is 358.2 inches ^2
Hope this helps :)
