B will be ur answer bc the weight of set of books
((There has been a malfunction or this users account may have been deleted))).....))
Answer:199---3
Step-by-step explanation:
There is a 96% customer retention rate for the third quarter.
Given
Jenny owns a salon.
She had 150 customers at the end of the third quarter, 151 customers at the beginning of the third quarter, and five new customers in the third quarter.
<h3>Customer retention rate;</h3>
It determines the percentage of customers that the company has retained over a given period.
The customer retention rate is determined by;

Substitute all the values in the formula;

Hence, there is a 96% customer retention rate for the third quarter.
To know more about customer retention rate click the link given below.
brainly.com/question/25668470
Answer: The required volume is 390 mm³.
Step-by-step explanation: Given that the stack on the left is made up of 15 pennies, and the stack on the right is also made up of 15 pennies. The volume of the stack of pennies on the left is 390 mm³.
we are to find the volume of the stack of pennies on the right in cubic millimeters.
The number of pennies on the left and right are same, equal to 15.
Also, the volume of the stack of pennies on the left is 390 mm³.
Since the number of pennies on the right and left are equal, so the volume of the stack on the right and left are also equal.
Therefore, the volume of the stack of pennies on the right is 390 mm³.
Thus, the required volume is 390 mm³.