2. A 10, B 12 miles per hour. A went 100, B 120 miles. 3. 5 yards and 6 yards. 4. 10 rows; 12 trees in a row; 960 bushels. 11. Length 30, breadth 25, height 20 feet. 12. 37 yards in each; prices 42s. and 32s. per yard. 13. 30 persons; $150 each. 14. Greater 57; less 45. 3. 5 and 10. 4. Length 30, depth 8, breadth 22 feet. 5. 16 feet. 6. 18 feet. 7. 6 and 12. 8. 22.071 inches. 9. Side of the base 31.072+ feet; altitude 124-288+ feet. 10. Radius 2 feet; length 7 feet. ART. 107. 1. m2-2mx+x2. 2. a3c+3a2 b c +3ab2c+b3 c. 3. a2m+2abm+b2m+2 acm+2bcm+c2m+a2n + 2 abn+b2n+2acn+2bcn + c2 n. 4. a3 x2+2 a3 x y + a3 y2. 5. 4c212cd+9 d2. 6. a2+2ab+b2 c3+3c2d+3cd2+d3° SECTION XXXIX. ART. 113. 1. a7 +7 a b + 21 a5 b2 +35 a1 b3 + 35 a3 b4 +21 a2 65 + 7 a b8b7. 2. x10+10x9y+45 x3 y2 + 120 x7 y3 +210 x y1 + 252 x5 y3 +210 x4 y6 +120 x3 y7 + 45 x2 y3 + 10 x y9 +y1o. 3. m5 5 m1 n + 10 m3 n2 10 m2 n3 + 5 m n1 — n5. |