answer: the correct answer is 90
* hope this !
by "units left" i'm assuming you mean from observing the number on a standard number line.
in that case, the number 7 units to the left of -15 would be -22, as you're basically subtracting 7 from -15, which is -22.
it is b. cause the equations are put in the right category
well, michelle wanted to measure the height of her school's flagpole she placed a mirror on the ground 48 feet from the flagpole then walk backwards until she was able to see the top of the pole in the mirror her eyes were 5 feet above the ground and she was 12 ft from the mirror using similar triangles find the height of the flagpole to the nearest tenth of a foot find the geometric mean of them pair of numbers. its easy math