Answer:
24°
Step-by-step explanation:
the total angle, made up from both a and 66°, is a mini-square, as you can see. this represents a right angle of 90°
thus, a and 66° combine to make 90°
a + 66° = 90°
subtract 66 from both sides to get a
a = 24°
A rational number can be written as "a ratio of integers".
(That's a fancy name for "a fraction".)
12+(1/3)x=35
(1/3)x=23
x=7.6666
