Which of the following is a good cardio-respiratory workout option a. taking an aerobics class b. jumping rope c. using the stairmaster at the gym d. all of the above

Cardio respiratory workouts contain such activities that help to test and improve ones body's ability to sustain dynamic exercise, using large muscle groups over time.

So, all the options - taking an aerobics class, jumping rope  , using the stair-master at the gym all are good options for cardio-respiratory workout.

Hence, option D - all of the above is the answer.

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step-by-step explanation:

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:

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