Question: can anyone check my answers if there are correct and...
Question details
Can anyone check my answers if there are correct and Make sure you EXPLAIN why you think your answer is correct please.

If we take a piece of plain paper which typically has
thickness of 0.005 inches and fold it, the resulting piece of paper
is 2 × 0.005 inches thick. If we fold it three
times, the thickness is 2 3 × 0.005 = 8 × 0.005 = 0.04 inches. What
would be the thickness of this piece of paper if we fold it 50
times?
 A developer owns a piece of land enclosed on three sides by streets, giving it a shape of a right triangle. The hypothenuse is 8 meters longer than the longer leg, and the shorter leg is 9 meters shorter than the hypothenuse. Find the lenghts of all three sides of the property.
......................................Here are my answers
#1: I took 2 ^ 50 * 0.005 which gives you 1.125899907 times 10 ^15. Then I took that answer and times it by 0.005 which equals 5.629499534 *10^12
2#: I used the a^2 + b^2=c^2 to work this
problem.
a^2+(a1)^2=(a+8)^2a^2 + a^2+2a +
1=a^2+16a+64I then moved the 16a and the 64 to the
other side of the equal sign making the problem now; a^218a63=0.
I then found a number that goes into 63 and will add to
18. (a21)(a+3)=0 A=21 than the shorter side would
be (a + 8)9=20 the longer side would be A + 8 (21 +
8=29)