Carolina goes to a paintball field that charges an entrance fee of \$18 dollar sign, 18 and \$0.08 dollar sign, 0, point, 08 per ball. The field has a promotion that says, "Get \$10 dollar sign, 10 off if you spend \$75 dollar sign, 75 or more!" Carolina wonders how many paintballs she needs to buy along with the entrance fee to get the promotion. Let B represent the number of paintballs that Carolina buys