Answer:
20 mm
Step-by-step explanation:

Answer:
x=30
Step-by-step explanation:
2x+2x+x+x=180
6x=180
x=30
Answer:

Step-by-step explanation:
It must end in
(divisible by 2 rule) and the digits must sum to a multiple of 9(divisible by 9 rule).
The digit sum is
.
We want to make
as low as possible because it's a higher digit than
.
If
is as low as possible, we have that the sum is
. Uh-oh.
has to be even! So
doesn't work.
If
, we have that the sum is
. Yay!
So, the answer is 
<span>137.5 because first you divide 110 by 80 and then mupilty the answer by 100
</span>
Answer:
10.29
Step-by-step explanation:
use Pythagorean theorem
side opposite to 90 is always hypotenuse
and we know
h^2=p^2+b^2
you can put any side as perpendicular or base.