6 7 7 9

99 of 100 targets have a solution.

\(1 = 69^{7 - 7 }\)
\(2 = \sqrt{67 - 7 \cdot 9 }\)
\(3 = 79 - 76 \)
\(4 = 67 - 7 \cdot 9 \)
\(5 = ( 9 - 7 ) \cdot 6 - 7 \)
\(6 = ( 79 - 76 )!\)
\(7 = ( 7 - 6 )^{9} \cdot 7 \)
\(8 = 77 - 69 \)
\(9 = ( 7 - 7 ) \cdot 6 + 9 \)
\(10 = \frac{ 67 + \sqrt{9} }{ 7 }\)
\(11 = \sqrt{6 \cdot 7 + 79 }\)
\(12 = 79 - 67 \)
\(13 = 76 - 7 \cdot 9 \)
\(14 = 6 - \frac{ 7 }{ 7 } + 9 \)
\(15 = \frac{ 97 - 7 }{ 6 }\)
\(16 = ( 7 - 6 ) \cdot 7 + 9 \)
\(17 = 7 - 6 + 7 + 9 \)
\(18 = ( 7 - ( 7 - 6 ) ) \cdot \sqrt{9 }\)
\(19 = 96 - 77 \)
\(20 = 69 - 7 \cdot 7 \)
\(21 = 97 - 76 \)
\(22 = \sqrt{\frac{ 7! }{ 9 } - 76 }\)
\(23 = 77 - 6 \cdot 9 \)
\(24 = ( 67 - 7 \cdot 9 )!\)
\(25 = 67 - 7 \cdot \sqrt{9 }!\)
\(26 = 6 \cdot 7 - 7 - 9 \)
\(27 = 6! - 77 \cdot 9 \)
\(28 = ( 6 + 7 - 9 ) \cdot 7 \)
\(29 = 6 + 7 + 7 + 9 \)
\(30 = 97 - 67 \)
\(31 = ( 6 + 7 - 9 )! + 7 \)
\(32 = 6 \cdot 7 - 7 - \sqrt{9 }\)
\(33 = \sqrt{7 \cdot 7} \cdot 6 - 9 \)
\(34 = 7 \cdot 7 - 6 - 9 \)
\(35 = ( 7 - \frac{ 6 }{ \sqrt{9} } ) \cdot 7 \)
\(36 = 6^{\sqrt{9} - \frac{ 7 }{ 7 }}\)
\(37 = 79 - 6 \cdot 7 \)
\(38 = \frac{ 76 }{ 9 - 7 }\)
\(39 = ( \sqrt{7 \cdot 7} + 6 ) \cdot \sqrt{9 }\)
\(40 = 6 \cdot 7 + 7 - 9 \)
\(41 = 6! - 97 \cdot 7 \)
\(42 = ( 9 - 6 ) \cdot ( 7 + 7 )\)
\(43 = \sqrt{9}!! - 677 \)
\(44 = 6 \cdot 7 - 7 + 9 \)
\(45 = ( 6 - \frac{ 7 }{ 7 } ) \cdot 9 \)
\(46 = 67 - 7 \cdot \sqrt{9 }\)
\(47 = 96 - 7 \cdot 7 \)
\(48 = ( 9 - \frac{ 7 }{ 7 } ) \cdot 6 \)
\(49 = \frac{ 7^{9 - 6} }{ 7 }\)
\(50 = 7 \cdot 9 - 6 - 7 \)
\(51 = 67 - 7 - 9 \)
\(52 = 7 \cdot 7 - 6 + 9 \)
\(53 = 6 \cdot 9 - \frac{ 7 }{ 7 }\)
\(54 = ( 7 - ( 7 - 6 ) ) \cdot 9 \)
\(55 = 69 - 7 - 7 \)
\(56 = 776 - \sqrt{9 }!!\)
\(57 = 67 - 7 - \sqrt{9 }\)
\(58 = 6 \cdot 7 + 7 + 9 \)
\(59 = 779 - 6 !\)
\(60 = 76 - 7 - 9 \)
\(61 = 6 \cdot 9 + \sqrt{7 \cdot 7 }\)
\(62 = 77 - 6 - 9 \)
\(63 = 67 - 7 + \sqrt{9 }\)
\(64 = 7 \cdot 7 + 6 + 9 \)
\(65 = 67 + 7 - 9 \)
\(66 = 79 - 6 - 7 \)
\(67 = \sqrt{67^{9 - 7 }}\)
\(68 = 69 - \frac{ 7 }{ 7 }\)
\(69 = 67 - 7 + 9 \)
\(70 = \frac{ 7 }{ 7 } + 69 \)
\(71 = 67 + 7 - \sqrt{9 }\)
\(72 = 76 - 7 + \sqrt{9 }\)
\(73 = \frac{ 9! }{ 7! } - 6 + 7 \)
\(74 = 76 + 7 - 9 \)
\(75 = 77 - \frac{ 6 }{ \sqrt{9 } }\)
\(76 = \sqrt{7 \cdot 7} + 69 \)
\(77 = 797 - 6 !\)
\(78 = 76 - 7 + 9 \)
\(79 = ( 7 - 6 ) \cdot 79 \)
\(80 = 77 - 6 + 9 \)
\(81 = ( 7 + 7 ) \cdot 6 - \sqrt{9 }\)
\(82 = 96 - 7 - 7 \)
\(83 = 67 + 7 + 9 \)
\(84 = 97 - 6 - 7 \)
\(85 = ( 6 + 7 ) \cdot 7 - \sqrt{9 }!\)
\(86 = 76 + 7 + \sqrt{9 }\)
\(87 = ( 7 + 7 ) \cdot 6 + \sqrt{9 }\)
\(88 = 7 \cdot \sqrt{9} + 67 \)
\(89 = 96 - \sqrt{7 \cdot 7 }\)
\(90 = 97 - \frac{ 7! }{ 6 ! }\)
\(91 = ( 7 - \sqrt{9} )! + 67 \)
\(92 = 76 + 7 + 9 \)
\(93 = ( 7 + 7 ) \cdot 6 + 9 \)
\(94 = ( 6 + 7 ) \cdot 7 + \sqrt{9 }\)
\(95 = 96 - \frac{ 7 }{ 7 }\)
\(96 = 96 - 7 + 7 \)
\(97 = \frac{ 679 }{ 7 }\)
\(98 = 97 - 6 + 7 \)
\(99 = ?\)
\(100 = ( 6 + 7 ) \cdot 7 + 9 \)