How many minutes are in 9 hrs
1 hr = 60 min
You must apply dimensional analysis (aka setting up fractions where the units you want will cancel out and the ones you want stay)

9 hrs is 540 min
Hope this helped!
~Just a girl in love with Shawn Mendes
You would have to subtract 13 from 36 to find the amount of females.
36-13 = 23
there must be 23 females
23:13 is the ratio
Step-by-step explanation:
2(3)
2×3=6
6×6=36
36 is the correct answer i hope it helps you