Answer:
Look below
Step-by-step explanation:
Sigma (summation) and Pi (product) notation are used in mathematics to indicate repeated addition or multiplication

Hope this helps
She didn't estimate her answer first
WHAT IS THE QUESTION ON KENDRA'S HOMEWORK?
The correct answer is A. x=22
Since the angles of a rectangle are right angles (90 degrees) you would set it up as 90=5x-20. Then combine like terms and solve the equation. (If you need me to show you how step by step tell me)
Answer:
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Step-by-step explanation:
did it on edge