Which situation is most likely to have a constant rate of change?

Step-by-step explanation:

The constant rate of change has to represent a linear function, where the constant represents the slope of the linear function.

Basically, the constant rate of change tells about the change of the dependent variable regarding the independent variable. So, there has to be a linear relation which can be proportional, that is, the increase of one variable ensure the increase of the other variable.

So, in this case, option D shows a possible proportional relationship, because more airports visited implies more distance traveled, if one increase, the other one will too.

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step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.