Answer:
Using the combination formula:
Number of combination of r object chosen from the total object i.e n is given by:

As per the statement:
4 candy bars be chosen from a store that sells 30 candy bars
Number of candy bars chosen from a store that sells 30 candy bars(r)= 4
and
Total candy bars(n) = 30
then substitute in the given formula we have;

⇒
⇒
Simplify:
⇒
therefore, 27,405 ways can 4 candy bars be chosen from a store that sells 30 candy bars
Answer:The family will use 792 gallons of water in the new washing machine
Step-by-step explanation:
1440 X 0.55=792
100-45=55
The answer would be 48.
All you would have to do is multiply the height (the straight line) and the length which is the 6.