If you change all the variables to the given valuables, the new equation would be (-3 + -9) - (-2 - 2 x -9)
Solve what's in the parenthesis first. -3 + -9 is -12. -2 x -9 is -18, and -2 - -18 is 16. Then you do -12 - 16 and you get -28
-28 is the answer :D

- The domain of the attachment graph .

The method to identify the domain and range of functions is by using graphs :-
⚡ The domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis .
⚡ The range is the set of possible output values, which are shown on the y-axis .
See the attachment figure .
[NOTE :- Keep in mind that if the graph continues beyond the portion of the graph we can see, the domain and range may be greater than the visible values .]
✍️ So, we can observe that the graph extends horizontally from -3 to the right with +10 .
✯ Hence, the domain is [-3 , 10] .
Your answer is D ................
8.545 rounded to the nearest tenth is 8.5. I hope this helps.
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➷The answer is point X.
Explanation: If you can see the graph, You can see that there are two points that are on the left, which is negative for the first number. Then, the second number, the Y position, which is 2, goes up, not down. So the right one is point X.
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➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
DOGE