7. is (4x+9)/7=f(x) because you switch the x and y and then solve for y.
f(x)=y
y=(7x-9)/4
x=(7y-9)/4
4x=7y-9
4x+9=7y
(4x+9)/7=y
Answer:
16.1km
Step-by-step explanation:
All you need is his total distance (10 miles). Then you use dimensional analysis (or unit multiplying).

Answer:
r=5/2
Step-by-step explanation:
Well, the 5 is the diameter and the radius is just half the diameter so the radius is 5/2.
Answer:
You are t subtract both 28,176.44-$1500
Step-by-step explanation:
right after that the answer you get for subtraction you go ahead and use it to subtract with 34,083.30