Answer:
the range of her test scores is 48
Step-by-step explanation:
The range of a set of data is the difference between the highest and lowest values in the set. To find the range, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set.
60,72,90,108
108-60=48
hope this helps!!!
range of the test scores is 48
60,72,94,108
108- 60=48
64= 39+x
x represents the unknown or in this case the money made to get to 64
39 is what she started with and 64 is the final total