1. What mark-up on price is the equivalent of 18.3% mark on cost?
2. Stacy is paid 73 for sewing a jacket collar, 86 for a sleeve with cuffs, and 94 for a lapel. One week she sewed 318 jacket collars, 112 sleeves with cuffs, and 37 lapels. Find her gross earnings.?
3. Adrian is looking for individuals who enjoy working with their hands and are willing to bend, cut, and insert discrete electronic components such as integrated circuits into standard printed circuit boards and solder as required. The pay scale follows.

1-100 units 94.10 each

101-150 units 98.25 each

151 or more units 102.40 each

Find the gross earnings of a worker producing 214 units.?

4. Amanda Roach, a food-supplements sales representative, had sales of 108,230 one month, with returns and allowances of 10,120. If her commission rate is 12%, find her gross earnings.?

5.Suppose the sales tax rate of the City of San Fernando is 6% of the purchase price.If the price of the new model of Acer laptop is 35,785, how much sales tax must be paid?

6.What is the total cost of merchandise selling at 21,800 plus a sales tax of 8.7%?

7.Find the mark-up on air-soft guns made in Taiwan if the cost is 15,700 and the mark-up is 29% of the selling price?