Answer:
thats a long question
Step-by-step explanation:
sorry I'm doing a competition for who ever reaches 1k points
about 8 classes
convert 6 3/4 to a fraction: 27/4
3/4 can go into 27/4 9 times, but with time in between, you should only be able to have 8 classes instead of 9
sin 30°=8/c
1/2=8/c
c=16.
tan 60°=b/8
√3=b/8
b=8√3.
