The order to us solve is:
- Parentheses
- Multiplication
- Sum and subtraction
Let's go:

Therefore, the result is 62.2.
Answer:
B. 0.69
Step-by-step explanation:
Law of Cosines: cos A = (b² + c² - a²) / 2bc
cosθ = (7² + 11² - 8²) / 2*7*11 = 106/154 = 0.688 ≈ 0.69
The answer is 5.5 because 66/12= 5.5, hope this helps..
You just take the denominator of the fraction used to divided the one and there is your answer. does this help