Composing functions means to use the output of the inner function as the input for the outer one. It gets really clear and simple if you explicitly write it out:
Now substitute 
:
Now, since 
, we know that 
gives as output twice the input. In this case, the input is , so the output will be twice as much:
Note that we also have
200-60 = 12x
(140) / 12 <= (12x) / 12
11(2/3) = x
(-infinity, 2]. Use the infinity symbol and not the word
Y=10
Y=7x
10=7x
7/10= 1.43
A.$1.43
1.43•5=$7.15
B.$7.15
I think this is the answer hope it helps
Answer:
Step-by-step explanation:
The price is x
50% of the price is $35
- x*0.5 = 35
- x = 35/0.5
- x = 70
Answer is $70
