4) The area of a circular pizza is a function of the radius of the pizza

Dependent Variable:

Independent Variable:

5) The number of people shopping is a function of the weather.

Dependent Variable:

Iederendent Variable

0) Shoe size is a function of the length of a person's foot.

Denendent Variable:

Independent Variable:

a) Independent Variable : Radius of the pizza.

b) Independent Variable : Weather

c) Independent Variable : Size of the person's foot.

Step-by-step explanation:

Independent Variable: The quantities whose value is not dependent on the other values of the experiment are called independent variable.

Their change does not reflect change in other quantities

Dependent Variable: The quantities whose value is dependent on the other values of the experiment are called dependent variable.

Change in other quantities implies change in the dependent variables.

Now,

A) The area of a circular pizza is a function of the radius of the pizza

Dependent Variable: Area of the Pizza as it depends on the radius.

Independent Variable : Radius of the pizza.

B) The number of people shopping is a function of the weather.

Dependent Variable: The number of people shopping as it depends on the weather

Independent Variable : Weather

C) Shoe size is a function of the length of a person's foot.

Dependent Variable: Shoe Size, as it depends on the person's foot.

Independent Variable: Size of the person's foot.