Answer: 

Explanation:
 The area of a parallelogram can be calculated with the following formula:
 

 Where "b" is the base and "h" is the height or altitude.
 You know that the base of this parallelogram is 8 inches long and the altitude to the base is 10 inches, then:
 

 You need to substutite these values into the formula.
 Therefore, the area the parallelogram is:
 
