$0. She got the $40 ring and then gave it back. 40-40=0.
Answer:
Step-by-step explanation:
Answer:
The number 1,254 is divisible by all of the following, except 9
Answer:
Undefined at x = 2 and x = -2
Step-by-step explanation:
(5x²+x+11)/(x²-4)
Function becomes undefined when the denominator goes to zero.
x² - 4 = 0
x = 2, -2