At a bake sale there were 54 items sold total. if 9 of the items sold were cookies and the rest were brownies what is the ratio of browines sold to cookies sold

Ok so we know that there were 54 items sold, of which were only brownies or cookies.

If 9 were cookies then
(54 - 9) brownies, or 45 brownies were sold.

So the ratio of brownies sold to cookies sold is
45:9, which when simplified, is a 5:1 ratio.

Hope this helped