Answer :
16 inches x 5 beads per inch is 80 beads total you would need to make a 16 inch necklace.
kacey is making a neklace long= 16
she uses bead for 1 inch= 5
she uses beads for 16 inches=16*5= 80
she uses bead for 1 inch= 5
she uses beads for 16 inches=16*5= 80