Yes so you will know I'm order what to do in your experiment
Negative numbers would not make sense for the <span>values of the variables especially when the equation represents a real world problem which mostly is the case. Having a negative value for a real world problem is not favorable because there is no such thing as negative time or negative height.</span>
There could have been one Grandma(One mom), one Mom(Another mom, and a daughter), and one Daughter(another daughter).
Depends how you were taught to solve it but if it were me I’d choose B) minimum value at -6