Answer:
12 23
Step-by-step explanation:
that = up to 35
You can find the value of x using the trigonometric function of cosine.
cos x = adj/hyp
cos 49 = x/55
55(cos 49) = x
36.083 = x
Hope I am right :)
The answer is 17 because all the others can be Times by more than one and itself
4 [x+(-3)] = 4x + 7
distribute 4
4x - 12 = 4x + 7
subtract 4x
-12 = 7
no solution