how do i expand the text box questions so the answers don't go into two lines?

If you wish to expand the text-box fields on the form you can use the form designer to increase the width:

Select the text-box field (1); edit the width (2):

Or you can add this css code:

.form-textbox {

    width: 250px;

}

https://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes 

If you wish to change the labels width you can also select the labels as described above, on the form designer or you can add the css code:

.form-label {

    width:200px;

}

If you need further assistance please let us know the form's url and the field name so we can be of further assistance.

Let us know if we can assist you further.