The printing material for a 3D printer is supplies as a spool of _____.

Write a segment of code that will use a dialog box to ask a user to enter their age. Their age will then be stored in an int variable named userAge. Assume that the necessary import statements to support the dialog box are already in place.

What will be an ideal response?

What kind of PHP variable stores a single value?

a. array b. scalar c. dictionary d. index