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Answer:
x=150
Step-by-step explanation:
x+30=180[co-interior angle]
x=180-30
x=150
You can calculate them out and check which one is the most accurate
so if one of the choices was 1/3 of 50, then you would do:
1/3 in the calculator (should be 0.333...) times 50
And you can compare it with the EXACT number, which is:
0.25*53=13.25
This way you can test all the options
You can do that using +6 and -6 .
(6) · (-6) = - 36
(6) + (-6) = 0
