Question

An author received $0.80 in royalties for each of the first 100,000 copies of her book
sold, and $0.60 in royalties for each additional copy sold. If she received a total of
$260,000 in royalties, how many copies of her book were sold?
O 130,000
O 300,000
380,000
400,000
420,000​

Answer 1

Answer:

1 is the answer........