Option C ,
40 degrees
Because angle Z was 70 (isosceles triangle)
Then 180-140=40 degrees
Since there is no number for the number of pounds for the polar bear, you would use p to represent polar bears. The expression would be: 1578 - p. Good luck
3.6 * 10^(-3) is the scientific notation
Answer:
C≈37.7 or 36
Step-by-step explanation:
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First, add all the numbers together. 
Divide by the amount of numbers. 
is the closest, so that is the answer.