3 1/2 cm or 3.5 cm. Because you should divide 280 by 80 which equals 3.5. turn 3.5 to centimeters. Thats your answer.
It would be 220 rounded to the nearest ten because the number in the ones place does not equal or exceed 5.
So 220 is your answer :)
Answer:
50
Step-by-step explanation:

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We make use of the special form for the difference of squares:
(a+b)(a-b) = a²-b²
Answer:
Degrees
Step-by-step explanation:
dont need one
Answer:
c is parallel to d
Step-by-step explanation:
the degrees need to be equal in order for them to not intersect at any point, if you set x = 10 as given.