90 it is a right tranigle
Answer:

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<u>hope it helps..</u>
<u>have a great day!!</u>
First, convert cm to inches.
50/2.54 is roughly 19.69
There are 12 inches in a foot, so divide the 19.69 by 12.
19.69/12 is roughly 1.64
So the answer is C
X=3
you can combine like terms to get -16x= -48 and then divide -48 by -16 to get 3