-25×2=-50
Negative and positive numbers are integers, like shown above. Their product is negstive.
Answer:
571.77 is the correct answer because
C=2πr=2·π·91≈571.76986
The <span>Pythagorean Theorem tells us that

where c is the </span><span>hypotenuse and a and b are the other two sides. To solve for one of the shorter sides we need to rearrange:

We can then substitute known values, and solve:
</span>



In this case just do it left to right, as multiplication comes before addition/subtraction. So 7x3x2+5-3=21x2+5-3=42+5-3=47-3=44=k.