Your equation looks like this:

All you have to do is divide 2/3 by 1/8. Without using a calculator, we can do this through the Keep Change Flip method. Keep the first faction 2/3, change the ÷ to a ×, and flip the 1/8 to 8/1. Now we multiply as usual:
b = 2/3 × 8/1
b = 16/3
Answer:
q=5c
Step-by-step explanation:
q is the total number of questions, so the other numbers/variables must be multiplied together to equal q.
c is the number of chapters read, so that must be multiplied by 5 (questions per chapter) in order to equal q.
Answer: 11 in.
Step-by-step explanation:
Given
The volume of the cylindrical vase is 
Inside diameter is 

Suppose, h is the height of the vase
Volume is given by

Insert the values

Thus, the height of the vase is
Answer:
r-9
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable
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