Answer:
i think it's 10 because if DE is 10 so BD is the same think it's 10
Πr^2(h)
π(1.2)^2)(4)=18.1 ft^3
22*18.1=398.2
Answer: I can help
Step-by-step explanation:
Hey there!
The answer to your question is 
Write the equation
Distribute -2
Combine like terms
Add 10 to both sides
Divide both sides by -11
Hope it helps and have a great day!
Step-by-step explanation:the answer is c i promise