<span>1/3(21−3a)=6−a
distribute 1/3 to all factors in the parenthesis
7 - a = 6 - a
add "a" to both sides
7 = 6
This is not true, there are NO solutions to this equation...</span>
Here it is in order (2nd to 6th):
1/ab, 1/a^3, b/a^5, b^2/a^7, b^3/a^9
Hope this helps!
I think the answer is 78.53982
Hope it helps!
I don't quite get the question but if you're looking for the area then it's 42.