What is the average rate of change for this quadratic function for the interval from x=2 to x= 4

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?