Add -7y and divide both sides to get one solution (0.20588)
The range would be the difference between the lowest age and the highest age.
The highest age is 76, the lowest age is 30
The range is 76 - 30 = 46
The answer is 1/12
The chance of getting a 3 on a six-sided dice is 1/6
The possibility of getting heads on a two-sided coin is 1/2
6 multiplied by 2 is 12
1 multiplied by 1 is 1
Hope it helps!
remember that local minimuns are points in which the function was decreasing and starts increasing.
you can try two ways of doing it, graphing the functions or using derivatives.
since this are twelve functios the easier way is to graph them.
start by function y=x
in this case this function is continously increasing as x increases, which means that it does not have any local maxima or minima.
now do the same for

this graph has a local minima on th