If functions transfer some a to b via some formula, then inverse of such functions transfer b to a via some other formula.
Hope this helps.
(B)
Step-by-step explanation:
Rewrite the equations into their standard forms. The first one can be rewritten as

and the 2nd can be rewritten as

Solving this system either by substitution or elimination, we get

If you add x + y, you'll get a negative number.
Answer:
22.6
Step-by-step explanation:
15-1 8-15
14^2 7^2
196+49
245
15.6