The answer is D. All you have to do is add all of the angles for each choice you're given. It has to add up to exactly 180, because every triangle is 180 degrees.
Research scientists use a standard practice called the _____ method to help them understand phenomena.
6 in the hundreds place = 600
6 in the tens place =60
Answer:

Step-by-step explanation:
when you raise an exponent to a power you multiply
Also since the terms inside the parenthesis are multiplied and not added, you don't have to worry about expanding it
