Answer:
50
110
90
=250
Step-by-step explanation: 90+50+110
I HOPE THIS HELPS

The last choice is appropriate.
Answer:
3x + 6 < 21
subtract 6 on both sides
3x < 15
reduce by dividing with 3
x < 5
remember to handle inequalities just like equations
Answer: 72
Step-by-step explanation:
\tan S = \frac{58}{19}
tanS=
19
58
S=\tan^{-1}(\frac{58}{19})
S=tan
−1
(
19
58
)
S=71.862\approx 72^{\circ}
S=71.862≈72