i need help with the whole page and for the questions that are already completed, i just want to double check them

72. In 1 73. Ine7 74. 10g3 3 75. 10g1/28 76. In 77. 273 78. (5a2/3) (4a3/ 2 ) 79. 4xy -2 ( 40 5/ 3 ) 12 12 x 3y-5 80. If f (x) - {(3,5), (2, 4), (1, 7)} g (x) - Vx - 3 h(x) = (3, 2), (4, 3), (1,6) then determine each of the following. k(x) = x2+5 81. (f + h) (1) 82. (k - g) (5) 83. f (h(3) ) = (3, 5) h(3)=(3,2) F ( 3 ) = ( 3,5) 84. g ( k (7 ) ) = JS1 85. h(3) 86. gg(9)) K ( 7 ) = 72+s = (3/ 2) g ( 9) = 19-3 =16 4 9+5 = 54 g = JS4-3 = 589 g = $51 87. f-1(4) 88. k-1(x) 89. k(g(x) ) 90. g (f (2) ) g t x ) = ( V x-3) f ( 2 ) K ( x ) = ( JR-J ) 2 +5