(a-b)(a+b) because when you reverse the sum you do axa and ax-b xx
Are they asking for the surface area?
Answer:
I think B is the correct answer, sorry im not very good with math tho.
Step-by-step explanation:
Sorry if its incorrect
If it’s 9.8 meters then it would be 980 centimeters.
He can make 18 and then he wouldn't have enough to make that 19th. You just take 28 and multiply it by 2, then divide it by 3. Or just multiply 28 by 2/3
