FERTILITY: Let's say that we take a data sample of mothers in a population. We record the following data among 10 mothers (the following numbers
represent how many offspring they produce): 2, 5, 7, 4, 3, 6, 5, 6, 4,5. What
would be the average birth rate for this sample of mothers?

How do you lengthen a pattern piece? (family and consumer science, sewing)

The identities of substances are the same before and after which type of change

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.