Ben joins a book club. He pays $12 for each book and $5 for shipping and handling charges for each order.

The graph in the attached figure

Step-by-step explanation:

The question is

Write an equation and make a graph that represents the total cost

Let

x ----> the number of books

y ---> the total cost in dollars

we know that

The linear equation in slope intercept form is equal to

In this problem we have

The slope  or unit rate is equal to

The y-intercept is the fee for shipping and handling charges

substitute

To graph the line we need minimum two points

we have the y-intercept (0,5)

Find another point

For x=2

The other point is (2,29)

Plot the points, connect them and join to graph the line

The graph in the attached figure

Remember that the value of x and the value of y cannot be a negative number

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

What mathematical statement is missing ? ? the answer is b