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?

Which of the following is not a subset of {1,2,3}?

Which rule describes the composition of transformations that maps ajkl to aj"k"l"? ro. 900 o to, -2(x, y) to, -20 ro, 900(x, y) ro, 9000 t-2. o(x,y) t-2, 00 ro, 900(x, y)

Does the construction demonstrate how to copy an angle correctly using technology a) yes the distance between points a and f was used to create circle h b) yes the distance between points f and g was used to create circle h c) no the distance between points a and f was used to create circle h d) no the distance between points f and g was used to create circle h