Hello these are my wrong questions,, Could someone provide solution for me to compare? So that I can catch where my errors from,, If you can provide I would appreciate for it

A wholesaler listed a food additive for $13.00 per kg. Last winter, he offered 24.00% and 6.00% discounts to a retailer. Round your answer to 2 decimal places. a. Calculate the net price to the retailer. Round to the nearest cent b. Calculate the single equivalent discount rate. % Round to two decimal placesA bank in London, Ontario charges 2.75% commission to buy and sell currencies. Assume that the current exchange rate is US$1 = C$1.3665. a. How many Canadian dollars will you receive from the bank if you sell US$1,380? Round to the nearest cent b. How much commission will you pay the bank for this transaction? Round to the nearest centThe selling price per unit of a product is $35, the fixed costs per month are $12,600, and the total variable costs per month are $12,000 at the break-even point. What is the number of units required to break even? Round up to the next whole numberCompuFit Outlet buys portable hard-disks for $480 each and has a rate of markup of 58% of the selling price. During a sale, it offers a markdown of 75%. a. Calculate the regular selling price. Round to the nearest cent b. Calculate the reduced selling price. Round to the nearest cent