40 cm. Just divide the area by the length. Hope this helps!
Answer:

Step-by-step explanation:
Let the total amount be x
Then Ali got 1/8x With 7/8x left
Juma got 7/40x with 7/10x left
Musa, Khalid and Mustafa got 7/30x each
since 
7x=18000

7/22 you add the denominators toghether and add the numerators.
Y= -35
Y = -1
I put the work in the picture below!
(Hint: just substitute the x for its number and do simple adding and subtracting)
Answer:
1/6 chance
Step-by-step explanation: