Answer:
9-10cm
Step-by-step explanation:
You have to find out all the infermation
9:30 she finishes
815 plus 75 is 890
there are 60 minutes in one hour
890-60 is 830
add 100 to represent another Hour
830 plus 100 is 930
9:30
therefore, it is 9:30
3. a. 10:35= 2:7
b.35:45=7:9
c.40:50=4:5
