Answer: 103 degrees
Step-by-step explanation: all angle of a regular triangle always add up to 180. so 62+15=77. and 180 - 77= 103
Answer: 
Step-by-step explanation:
I looked it up on my calculator. I hope this helps!! :)
Answer:
2(n-8) = 5
Step-by-step explanation:
I'm assuming that its supposed to say "a number <em>and</em> 8"
Answer:
x=3
Step-by-step explanation:
8x-28-2x=-10
We move all terms to the left:
8x-28-2x-(-10)=0
We add all the numbers together, and all the variables
6x-18=0
We move all terms containing x to the left, all other terms to the right
6x=18
x=18/6
x=3