An art teacher recorded whether the students in three of her classes prefer water color or oil painting. She plans to create a two-way table to analyze her results. Which describes the variables she can use in the first row and first
column to create her table?
painting preference and total number of students
painting preference and number of students in class 1
class number and painting preference
class number and number who prefer oil
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Submat

Hi there

Painting preference and total number of students.

For two way table we need to the data that will consider all the cases:

So, an art teacher should use the two variable painting preference and number of students as her first row and first column respectively.

Because these two things will consider both water color or oil painting under painting preference.

And all students of all three classes under number of students.

hope this help you

A.painting preference and total number of students

Step-by-step explanation:

you are welcome !!

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.