Answer:
Yes, this is a function.
Step-by-step explanation:
This is a function because every input goes to exactly one output. Although 1 is listed twice in this example, it still goes to the same output of 15.
Well 22 blue + 27 red = 49 total. And 49 MP3 players x $41 = exactly $2401
Answer:
15.7
Step-by-step explanation:
Answer:
4u²
Step-by-step explanation:

Common factors cancel from numerator and denominator. The one factor that might make the expression undefined is given as non-zero, so no additional restrictions apply.