can someone tell me what it means that im missing an argument?

[azn_sweet]

/*Output Section */
printf ("\nThat height is equivalent to " "%1f" " feet and " "%2f" " inch(es).\n");
scanf ("%f", &FEET);
scanf ("%f", &INCHES);

[Ancient Dragon]

The printf() statement contains %s and %f, but there are no arguments for them

char message[] = "Hello World";
printf("%s\n", message);

In the above, mssage is passed as an argument to printf(). Your printf() needs similar arguments.

[Aia]

/*Output Section */
printf ("\nThat height is equivalent to " "%1f" " feet and " "%2f" " inch(es).\n");
scanf ("%f", &FEET);
scanf ("%f", &INCHES);

This is how you add quotes to the specifiers and those are the correct parameters if you want to control the output of the floats.

printf ("\nThat height is equivalent to \"%.2f\" feet and \"%.2f\" inch(es).\n", feet, inches);