Answer:
Part 1) 
Part 2) There are about 
Step-by-step explanation:
Part 1) we know that
1 month=4 weeks
Let
x------> the number of hours of practice for three months
so
Convert months to weeks
3 months=3(4)=12 weeks
using proportion

that means------> In three months (12 weeks) the pianist practice 180 hours
Part 2)
Let
x------> the number of bass
y------> the number of catfish
we know that
Using proportion

There are about 
64
Step-by-step explanation:
Answer:
-21
Step-by-step explanation:
f(-8) = 2(-8)-5 = -21
Answer: 41/20
Step-by-step explanation:
there is a possibility that this is incorrect bb srry