Zara owns a hairdressing salon. she buys a pack of 60 bottles of shampoo from warehouse for $240.she plans to sell the bottles of shampoo to her customers for $5.50 .zara sells 45 bottles at $5.50 each then sells the rest with a 20% discount. calculate the total profit she makes selling all 60 bottles.

Two farmers pay a total rent of $140 for a pasture. the first farmer placed $4 oxen in the pasture, and the second farmer placed $30 sheep in the pasture. the farmers split the rent based on the proportion of the pasture eaten by their own animals that month. how much should the first farmer pay, if 1 ox eats as much as 10 sheep in a month?