Answer:
50°
Step-by-step explanation:
Complementary angles sum to 90° , then
complement = 90° - 40° = 50°
Rounding to the nearest hundredth would equal a more accurate and precise answer since more decimals are present. Your answer would be even more accurate if you rounded to the nearest thousandth.
If 3x-y=12, what is the value of 8x/2y?
Answer:

Step-by-step explanation:


-------------------------(equation 1)
Now,
---------(from equation 1)



Therefore, the value of 
Your answer would be 1.13 repeating or no solution.