Mariam has $520 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax.
She buys a new bicycle for $311.60.
She buys 4 bicycle reflectors for $7.18 each and a pair of bike gloves for $19.94.
She plans to spend some or all of the money she has left to buy new biking outfits for $76.57 each.
What is the greatest number of outfits Mariam can buy with the money that's left over?