Answer:
he will have 3 beads left over
Step-by-step explanation:
29 + 23 + 31 = 83 beads used for a set of 3 bracelets of the 3 designs
750/83 = the no. of sets of 3 bracelets of the 3 designs
750/83 = 9 sets with a remainder of 3
So, he will have 3 beads left over