The answer to number 1 is B
Answer:
13
Step-by-step explanation:
The range of a data set is the difference between the greatest and least values in the set. In this case, the greatest value is 15 and the least value is 2 so the range is 15 - 2 = 13.
Mixing the two concentrations would give a new concentration which is in between 50 - 60% .
D. 63% cannot be obtained
The answer is e because I look it up
