Answer:the variable expression to represent the sum of their circumferences would be
(8xy)cm + (5xy)cm
Step-by-step explanation:
The circumference of the first circle is 8xy cm
The circumference of the second circle is 5xy cm
the variable expression to represent the sum of their circumferences would be
(8xy)cm + (5xy)cm
This variable expression can also be simplified further because both terms contain xy.
