All 100 targets have a solution.
\(1 = 4 - \frac{ 27 }{ 9 }\)
\(2 = \frac{ \frac{ 72 }{ 4 } }{ 9 }\)
\(3 = 9 - \frac{ 42 }{ 7 }\)
\(4 = \sqrt{\sqrt{247 + 9 }}\)
\(5 = \frac{ 47 - 2 }{ 9 }\)
\(6 = \frac{ 24 }{ 7 - \sqrt{9 } }\)
\(7 = \frac{ 27 }{ 9 } + 4 \)
\(8 = 24 - 7 - 9 \)
\(9 = \frac{ 27 + 9 }{ 4 }\)
\(10 = ( \frac{ 27 }{ 9 } )! + 4 \)
\(11 = \sqrt{24 + 97 }\)
\(12 = \frac{ 24 }{ 9 - 7 }\)
\(13 = \frac{ 27 }{ \sqrt{9} } + 4 \)
\(14 = 27 - 4 - 9 \)
\(15 = \frac{ 42 }{ 7 } + 9 \)
\(16 = \sqrt{247 + 9 }\)
\(17 = 2^{7 - 4} + 9 \)
\(18 = 47 - 29 \)
\(19 = \frac{ 47 - 9 }{ 2 }\)
\(20 = 27 - \sqrt{49 }\)
\(21 = \frac{ 42 }{ 9 - 7 }\)
\(22 = 49 - 27 \)
\(23 = 72 - 49 \)
\(24 = \sqrt{24^{9 - 7 }}\)
\(25 = \sqrt{729} - \sqrt{4 }\)
\(26 = 24 - 7 + 9 \)
\(27 = \frac{ 72 }{ 4 } + 9 \)
\(28 = \frac{ 47 + 9 }{ 2 }\)
\(29 = 47 - 2 \cdot 9 \)
\(30 = \frac{ 92 }{ 4 } + 7 \)
\(31 = \sqrt{729} + 4 \)
\(32 = 27 - 4 + 9 \)
\(33 = \frac{ 792 }{ 4 ! }\)
\(34 = 27 + \sqrt{49 }\)
\(35 = 49 - 2 \cdot 7 \)
\(36 = 47 - 2 - 9 \)
\(37 = 79 - 42 \)
\(38 = 27 + \sqrt{4} + 9 \)
\(39 = 7 \cdot 9 - 24 \)
\(40 = 24 + 7 + 9 \)
\(41 = 47 - 2 \cdot \sqrt{9 }\)
\(42 = \frac{ 294 }{ 7 }\)
\(43 = \sqrt{4} \cdot 7 + 29 \)
\(44 = 42 - 7 + 9 \)
\(45 = 74 - 29 \)
\(46 = \frac{ 74 }{ 2 } + 9 \)
\(47 = ( \sqrt{9} - 2 ) \cdot 47 \)
\(48 = ( 9 - 7 ) \cdot 24 \)
\(49 = ( \frac{ 49 }{ 7 } )^{2 }\)
\(50 = 2 \cdot 7 + 4 \cdot 9 \)
\(51 = \sqrt{729} + 4 !\)
\(52 = 42 + 7 + \sqrt{9 }\)
\(53 = 2 \cdot \sqrt{9} + 47 \)
\(54 = \sqrt{729 \cdot 4 }\)
\(55 = 79 - 24 \)
\(56 = 74 - 2 \cdot 9 \)
\(57 = 4 \cdot 7 + 29 \)
\(58 = 42 + 7 + 9 \)
\(59 = 72 - 4 - 9 \)
\(60 = 27 + 4! + 9 \)
\(61 = 72 - \sqrt{4} - 9 \)
\(62 = 7^{2} + 4 + 9 \)
\(63 = 4 \cdot 9 + 27 \)
\(64 = 4^{\frac{ 27 }{ 9 }}\)
\(65 = 72 - \sqrt{49 }\)
\(66 = 72 - \sqrt{4 \cdot 9 }\)
\(67 = 94 - 27 \)
\(68 = 74 - 2 \cdot \sqrt{9 }\)
\(69 = ( 27 - 4 ) \cdot \sqrt{9 }\)
\(70 = \frac{ \sqrt{49}! }{ 72 }\)
\(71 = 79 - 2 \cdot 4 \)
\(72 = ( 27 - 9 ) \cdot 4 \)
\(73 = 97 - 24 \)
\(74 = ( \sqrt{9} - 2 ) \cdot 74 \)
\(75 = 74 - 2 + \sqrt{9 }\)
\(76 = 27 + 49 \)
\(77 = 72 - 4 + 9 \)
\(78 = 7^{\sqrt{4}} + 29 \)
\(79 = \sqrt{49} + 72 \)
\(80 = 94 - 2 \cdot 7 \)
\(81 = ( \frac{ 27 }{ 9 } )^{4 }\)
\(82 = 2^{\sqrt{9}} + 74 \)
\(83 = 72 + \sqrt{4} + 9 \)
\(84 = ( 9 - 7 ) \cdot 42 \)
\(85 = 47 \cdot 2 - 9 \)
\(86 = 92 - ( 7 - 4 )!\)
\(87 = 7 \cdot 9 + 24 \)
\(88 = ( 29 - 7 ) \cdot 4 \)
\(89 = 92 + 4 - 7 \)
\(90 = \sqrt{4} \cdot 9 + 72 \)
\(91 = 49 \cdot 2 - 7 \)
\(92 = 2 \cdot 9 + 74 \)
\(93 = ( 24 + 7 ) \cdot \sqrt{9 }\)
\(94 = \sqrt{\sqrt{9}! - 2} \cdot 47 \)
\(95 = 2^{4} + 79 \)
\(96 = ( 7 - \sqrt{9} ) \cdot 24 \)
\(97 = 47 \cdot 2 + \sqrt{9 }\)
\(98 = 7^{2} + 49 \)
\(99 = 27 \cdot 4 - 9 \)
\(100 = ( 47 + \sqrt{9} ) \cdot 2 \)