Answer:

Step-by-step explanation:
All you do is multiply straight across [both denominator and numerator] to arrive at your answer. Then, multiplying two <em>x</em>'s together gives you
. So, with all that being said, you have your answer.
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Answer:
0
Step-by-step explanation:
2a+6=6
-6=-6
2a=0
2 2
a=0
Use surface area equation 2ab+2bc+2ac plug the numbers in
Answer:
a = 62
Step-by-step explanation:
The sum of the angles of a triangle is 180 degrees
a + 47+71 = 180
Combine like terms
a +118 = 180
Subtract 118 from each side
a+118-118=180-118
a =62