Answer:
Step-by-step explanation:
We can use combinations
20 choose 4:
20!/(16!*4!)
= (20*19*18*17)/4!
= 4845
Answer:
72 miles per 24 hours
Step-by-step explanation:
72 miles in one day
There are 24 hours in a day.
Answer:
180
Step-by-step explanation:
because im always right
80% = 0.80
divide the area done by the percentage:
920/0.80 = 1150
total area is 1150 square feet
Answer:
a is -11x+3x
b is -48/13
c is -2(x-1)
Step-by-step explanation:
hope this helps!
