What are the domain and range of the function ?

Can’t see the full graph! But you can see there’s a small portion of the graph showing at the bottom which seems to be continuing making the range start from negative infinity. So, it has to be either the first or last option. You can check where the least and greatest x values that are graphed are to determine your domain

than do 23.50 times 18 and then divide your answer by 100 than you will get x.

1.5 pounds because you put 9over 6 and then divide by 6