Me no one knows how to do this and its due tomrrow !

Hi there! We can see that each option includes a y value and an x value, for example, y = 4x + 1. We can also see that there is a table with two columns, both labeled x and y. This is no coincidence. To solve these problems, simply substitute the x and y values for each equation.

For example, number one, option B would be like: which simplifies into . This is true, so A is your answer. Now that we know this method, let's test it out on the other problems.

2.)

The answer is c.

3.)

The answer is D.

Note: You might notice that sometimes more than one equation works for the first set of points. If this is so, then just try another ordered pair. I only did the first ones because they were smaller and easier to explain. Hope this helped and good luck! :D

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40