Since we know the degrees of the circle is 360, add all of the pieces together and set equal to 360
Solving you get x = 15.
When plugging 15 back into each expression we get 90, 160, and 110.
This means the triangle sides are all different so the triangle is scalene.
I like to use 8 hours of school a day so thats 21 a week but all people are different so at most 36 hours a week
The conclusion is valid
it is a systematic random sample
and the second one is a line graph (I think)
Answer:45 minutes
Step-by-step explanation:since you walk 4 miles an hour in half of one you walk 2