Answer:

Step-by-step explanation:
Given:

Then the composition of functions:

where we have written the final functional expression in its standard form.
Answer:
8+7x+4y
Step-by-step explanation:
15-7 is 8
12x-5x is 7
Put it all together to get 8+7x+4y
A) 2x-7=13
2x=20
x=10
B) 3x+4=25
3x=21
x=7
Answer:
I cant see the entire question
Step-by-step explanation: