To find out how much Elsa will earn from selling 3 large necklaces, you need to multiply the price of each necklace by the number of necklaces she sells.
The price of each large necklace is $4.80 and she sells 3 of them, so the total cost will be $4.80 * 3 = $<<4.8*3=14.40>>14.40.
So Elsa will earn $14.40 from selling 3 large necklaces.