Answer:
1 % decrease
Step-by-step explanation:
The percent of decrease time can be written as the expression 
Now, we convert the fraction into a decimal: 
We can convert this decimal into a percentage: 0.01*100 = 1%.
<u><em>PLZ MARK BRAINLIEST!!!</em></u>
We know that
The formula for combinations is
C=n!/[(n-r)!*r!]
where
n is the total number of objects you choose from
r is the number that you choose to arrange
in this problem
n=15 students
r=4 students
C=15!/[(15-4)!*4!]-----> C=15!/[11!*4!]---> (15*14*13*12*11!)/(11!*4*3*2*1)
C=(15*14*13*12)/(24)----->C=1365
the answer is
1365
Answer:
b is correct
Step-by-step explanation:
