Answer:

Step-by-step explanation:
To solve for <em>CD</em>, we can create a right triangle.
Where <em>CD</em> becomes the hypotenuse.
The length of the base of the triangle is 9 units.
The length of the height of the triangle is 5 units.
Apply Pythagorean theorem to solve for the hypotenuse.




Answer:
88.796
Step-by-step explanation:
you multiply them...
2/5/9 solved will be 0.4 repeating as a decimal, & 4/9 as a fraction
145 divided by 7 =20.71
a little sketch on my answer <span />