Answer:
That depends on which operations you want to do first. The order of operations affect to outcome of the equation.
In this case:
15 - (3 x 4) + 9 = 12
Answer:
actually what is this is you is this a geometry, trigonometry I don't know what to call
Answer:
a=20
Step-by-step explanation:
You cross multiply: 9a=180
a=20.
Because 3 is less than or equal to 4, you would round down, it would be 33. I am talking about the three(s) after the decimal.
