318-47= 271 There are 271 non-fiction books in the library. just subtract 47 from 318 to get the answer.
Answer:
<GHI = 135 degrees
Step-by-step explanation:
(3x + 12) + (x + 4) = 180
4x + 16 = 180
4x + 16 - 16 = 4x
180 - 16 = 164
4x = 164
4x / 4 = x
164 / 4 = 41
x = 41
3 * 41 + 12
3 * 41 = 123
123 + 12 = 135
Answer:
<em> (1). 50.0° ; (2). 15.5 units</em>
Step-by-step explanation: