2. The acidity in a swimming pool is considered normal if the average of three pH readings is between 7.0 and 7.8. If the first two readings are 7.2 and 7.6, what possible readings would the
third reading need to be to have an overall rating of normal?

tangent

step-by-step explanation:

i recommend you do what your heart desires. if you're attracted to the same gender, then you're attracted to the same gender. you can't determine what your heart wants.

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)

answer is 1

step-by-step explanation: