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9. Make out a bill against John Wagner for the following items, purchased of James Tyrone, 1876: May 1, 2 setts harness, @ $35; 2 saddles, @ $15; May 5, 3 wagon hubs, @ $1.50; 5 pairs buckles, @ $.75; and 2 buggy axles, @ $8. Ans. $124.25.

10. Make out bill for Joseph Hoffman, who has bought from Edward Stewart in New York the following items: 1876, Mar. 16, 13 yards cashmere, @ $1.25; 8 yards serge, @ 40; 6 yards muslin, @ 12; 11 do. cambric, @ 10%; April 8, 5 yards prints, @ 10; 6 do. muslin, @ 124; and 6 do. cambric @ 13. Ans. $23.36.

11. Mrs. M. Stewart bought of S. B. Horne in 1876, May 11, 1 pair kids, $2.00; 2 sprays, @ 30; 1 yd. Ruching, @ 50; yd. illusion, @ 80; May 16, 2 umbrellas, @ $2.50; 4 yards ribbon, @ 30; 4 pairs hose, @ 754; 4 yd. elastic, @25; 3 ounces zephyr, @ 254; 6 handk'fs, @ 40%. Make out bill and amount. Ans. $

12. A. L. Sturgeon, Esq., bought of Samuel Wallace of St. Louis, 1876, May 9, 1 broadcloth dress coat, $45; 1 velvet vest, $10; 2 pairs pants, @ $14; 1 pair suspenders, $1.25; 3 boxes collars, @ 35o; and had overcoat repaired at a cost of $2.50. What was his bill ? Ans. $87.80.

13. The following articles were sold in Pittsburg, Pa., by A. H. English & Co., to J. R. Weldin & Co., March 28th, 1876 600 Progressive Spellers, at $.15 each; 200 Progressive First Readers, at $.161 each; 100 Progressive Second Readers, at $.35 each; 100 Progressive Third Readers, at $.53 each; 50 Dean's Primary Arithmetics, at $.16 each; 50 Dean's Intellectual Arithmetics, at $.36 each; 25 Burtt's Practical Grammars, at $.66% each; 48 Lossing's U. S. Histories, at $1.00 per copy. Make out a receipted bill.

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188. Simple Numbers are those that express only one kind, or denomination. Thus, five, fifteen (meaning five ones, fifteen ones), five apples, fifteen trees, six bushels, three yards, are simple numbers.

189. A Simple Denominate Number is a simple number whose unit is used as a measure (191) of that number. Thus, 5 dollars, 11 miles, 10 acres are denominate numbers, because 1 dollar, 1 mile, 1 acre, are respectively exact divisors, or measures of those numbers.

190. A Compound Denominate Number, sometimes called a Compound Number, consists of two or more properly related simple denominate numbers taken together. Thus, 5 yards, 3 feet; 3 quarts, 2 pints, 1 gill; 1 mile, 7 furlongs; are compound denominate numbers.

191. A Measure of a denominate number is a standard unit, with which we compare the number, and thus determine its numerical value, weight, or size. Thus, the measure of United States money is the dollar ($); of English Money, the pound (£); of wood, the cord; &c.; &c.

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