I don’t know how those answers exist but the correct answer here is 10, 16-6 = 10 yds.
You can factor -80 as

So, we have

The square root of a product is the product of the square roots:

Since
and
, we have

Answer:
6√3
Step-by-step explanation:
Use the sin formula, which is sin = opp / hyp
sin 60 = x / 12
x = 12 sin 60
x = 6√3

You can see that each time x increases by 1, y increases by 5. This means that the coefficient of x is 5 (if you graphed it, the slope would be 5). To find what value to add at the end, you can look at what y is when x equals 0. In this case, that is -2 (on a graph, -2 would be the y-intercept).