Step-by-step explanation:
She should use Mean. This is where you add all of the numbers, then divide it by the number of numbers. Her average score is 80.75, or rounded to 81.
The triangle is always 180 degrees
6x + 8x + 7 + 8x - 3 = 180
Simplify
22x + 4 = 180
Minus 4 from both sides
22x = 176
Divide 22 by both sides
X = 8
Can I get brainliest answer
Answer:
60 degrees.
Step-by-step explanation:
