Answer:
it is 4
Step-by-step explanation:
i know it i had that question
Mason needs 9 more seed packets to have a total of 20 plants in his yard.
Simplified:
20-11=9
4(r)^x=y
4(r)^(1)=2
r=1/2
y=4*(1/2)^x
Evaluating the expression 11C3 is very simple to do.
If you are assuming that C is the notation for the combination.
11!
11C3= ____
3!(11-3)!