Answer:
14.7 trees
Step-by-step explanation:
First you need to find how many trees she cuts down to build one cabin. So you divide:
10.5/5=2.1
She cuts down 2.1 trees to make one cabin.
Next you multiply:
2.1*7=14.7
b
Do you mean the measure?
S(B(r))
B = sleep hour
S = practice hour
Multiply 5π/6 by 180/π, you will get answer 150°.