5 hours because 5x6 = 30 +20 =50
just put it over each other or search it up. that’s what i do
Answer:
3003.
Step-by-step explanation:
This is the number of combinations of 5 books from 15 = 15C5
= 15! / 10! 5!
= 15*14*13*12*11 / 5*4*3*2*1
= 3*7*13*11
= 3003.
You would do 45 divided by 9 which is 5. Then you do 5x7= 35 and that's your answer
