Answer:20 pieces of jewelry
Step-by-step explanation:
Mellissa owns 4 sets of jewelry. Each set contains 2 earrings, 1 necklaces, 1 bracelet, 1 ring. This means that the total number if each piece of jewelry would be
Total number of earrings would be 4×2 = 8 earrings.
Total number of necklaces would be 4×1 = 4 necklaces.
Total number of bracelets would be 4×1 = 4 bracelets.
Total number of rings would be 4×1 = 4 rings.
Total pieces of jewelry that Melissa have all together will be
8 earrings + 4 necklaces + 4 bracelets + 4 rings = 20 pieces of jewelry