Variablesallow us to manipulate data through the
? actual value
? reference
? length
? name

Reference

Explanation:

Variables provide reference to the stored data value.

For example:

int i = 0;

Here i is a variable of type int with an initial value of 0. i is a reference to this stored value 0. Now if I want to update the data, I can do so using this reference.

i = 1;

Now the reference is used to manipulate the stored data and change it to 1. In a similar manner all updates to the value can be done using the variable reference.

answer: a, c

divide any of the y values by x values and you will always get 3 is the most simple way i can put it for you.