Answer:
Step-by-step explanation:
Recall the formula nCr=n! {(n-r)!r!}
Here, n=9, r= 4
9C4=9! / {(9-4)! 4!
=9! / (5! 4)
= 362880 / (120* 24)
=126
Awnser is 126
A.) You and your sister traveled 70 miles altogether
b.) It took 90 minutes
Step-by-step explanation:
4x=2x+6
2x=6
x=3
3*4=12
Answer:
width:7.5 length:4
Step-by-step explanation:
15/2=7.5 and 8/2=4
Answer:
B. $48.50
Step-by-step explanation:
Max-Min
249.99-201.49= 48.50