avannah was paid $87 for 12 hours of babysitting and $65.25 for 9 hours. What is the constant of proportionality that describes this relationship?
Responses
A 0.140.14
B 7.257.25
C 12.512.5
D 65
To find the constant of proportionality, we need to find the ratio of the two sets of values.
The first ratio is $87/12 = 7.25$.
The second ratio is $65.25/9 = 7.25$.
Since both ratios are equal to 7.25, the constant of proportionality that describes this relationship is 7.25.
Therefore, the correct answer is B) 7.25.