(any number, 0) is a point on the x-axis.
(0, any number) is a point on the y-axis.
(0, 0) is the only point that's on both of them.
The area for the square is given, and it is 36. To simply find the length of each side, all you have to do is take the area and square root it. The square root of 36 ( ask yourself what number times itself is equal to 36? To get your answer or input it in the calculator. ) is 6. So, the answer is 6 and each side of the quilt is a length of 6.

bearing in mind, "t" is in years, 6months is just 1/2 year
solve for "r", you'd get a decimal amount, multiply times 100, to get the percentage form
First multiply 11 with 9 to get 99 and then 11 with d to get 11d
thus the answer is 99+11d.