Answer:
95,040 different cast are possible
Step-by-step explanation:
In this case the order in which the actors are selected for the 5 different roles is important. Therefore we use the permutations formula.

Where n is the number of items you can choose and choose r from them.
In this case
and 



Answer:
38 feet
Step-by-step explanation:
8 ft plus 8ft plus 7cm plus 7cm
do sum math and divide
Answer:
20
Step-by-step explanation:
You would do this by dividing 43 into 860
Answer:
21
Step-by-step explanation:
27÷3 is 9 and 21÷3 is 7
Well it sounds like you mean smaller, not greater. 3/300 = 1/100 while 3/30 = 1/10. So 3 out of 300 is 10 times SMALLER than 3 out of 30.