Answer:
9 and 4/5
Step-by-step explanation:
For this case we have the following functions:

We must find 
By definition of composition of functions we have to:

So:

We have different signs subtracted and the sign of the major is placed.
Finally we have to:

ANswer:

A rational number can be turned into a fraction
-9...rational number
0..rational number
8..rational number
4.19...rational number
sqrt 7....not rational
sqrt 4...rational
4 1/2...rational
-4/5...rational
1.1616616661 (if this is never ending)....not rational
Answer:
Step-by-step explanation:
a) perimeter = 8x + 3 + 5 + 7x + 4
b) perimeter = 15x + 12
Answer:the total cost of taming 10 flute lessons is 310
Step-by-step explanation:
The equation to determine f, the total cost of flute lessons is expressed as
f = 25m + 60
Where
m represents the number of months of lessons she would take.
Jess decides to take flute lessons for 10 months. Therefore, the total cost of taming 10 flute lessons would be
f = 25 × 10 + 60
f = 250 + 60
f = 310