Ms. Clark’s class went to recess at 12:00pm ,as shown below . The minute had turned 90 degrees by the time recess ended. At what time did recess end? A. 12.15. B. 12:30pm C. 12:45. D. 1:00pm?

A

Step-by-step explanation:

90 degrees is like the shape L , so just imagine the smaller side of the L on a clock. its facing 12;15

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!