69. 5 in.
71. 3 38 ft from the vertex
73. (116, 0)
75. (0, 116)
77. 16.875 ft
79. 7.96 yd
81. Output: 15 tons; cost: $27.50
..................Content has been hidden....................
You can't read the all page of ebook, please click
here login for view all page.