How do i do this cause im STRESSING TO THE MAX RIGHT NOW

Step-by-step explanation:

Something to remember is that, if a negative number has a large number in it (9, 10 etc.) instead of a smaller number (2, 3, etc.) then the greater number is actually smaller, because it is farther down on a number line.

1.) First, take -√9, and take away the - sign for a moment. Pretend it isn't negative.

2.) Next, find the square root of 9. What times what equals 9? 3x3=9, so √9=3.

3.) Now, place the negative sign back. So, this is -3.

4.) Now, take -2³. When there is a small number next to a normal number, that means that you need to multiply the large number by the small one. So, in this case, do 2x3.

5.) 2x3=6.

6.) Now, add the negative sign back to it. so, -6.

7.) Remember that if a negative number has a larger number, then it is actually smaller, as it is farther down on the number line.

8.) So, we have -3 and -6. Of course, -3 is larger. therefore, -2³ is less than -√9, and the answer is A.

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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96 cm is the answer.