Do 40x10=400. Then do 40x6=240. Lastly, add 400+240=640.
18 dollars and 30 cents for 15 golf balls
Answer:
AB and CD - Parallel Lines
EF and CD - Perpendicular Lines
GH and EF - Neither Parallel nor Perpendicular Lines
Let me know if this helps!
Answer:...this can't be 5th grade work. I'm in 8th grade and I'm just starting this. But anyways. I think the answer is 1,665