Which budget item does not necessarily include monthly expenses? a. transportation b. medical expenses c. housing d. food

I believe that medical expenses isn't include into monthly expenses.

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450