Answer:
70 degrees.
Step-by-step explanation:
Add up all the values and divide by 5.
350/5 = 70.
Step-by-step explanation:
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ANSWER: The answer is c) -5 and a very happy birthday to you
In a triangle, the three interior angles always add to 180°
m∠R + m∠S + m∠<span>T = 180
</span><span>(2x+10) + (2x+25) + (x-5) = 180
</span>2x+10 + 2x+25 + x-5 = 180
5x + 30 = 180
5x = 150
x = 30