Sum of all the angles in a triangle = 180 degrees.
it's given is an acute angle so <90
degrees now one is 38 the sum of other two would be 142 now here 27 is not possible because then the third angle, would be 115 degrees.
hope this help
(b) , because if you expand 3(n+6), it is
(3×n)+(3×6) = 3n+18
hope this helps! :)))
Answer:
if you evaluate 5.0 it will give you 5 so it's D
