What’s the correct answer for this?

9.4 units.

Because,

Formula for arc length is 2times pie times radius times angle divided by 360.

The answer is option 2.

Step-by-step explanation:

You have to use length or arc formula, Arc = θ/360×2×π×r where θ represents degrees and r is radius. Then substitute the following values into the formula :

Let θ = 45,

Let r = 12,

tube or goog would be a great resource to with that question

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14