Question

Answer it this is for high school student​

Answer 1

`\sf \: 1. \bigg[ (4 + ( - 5))/( - 2 - 3) \bigg]\bigg[ (14 + ( - 21))/( 2 - 8) \bigg] \\`

`\sf \longrightarrow \: \bigg[ (4 + ( - 5))/( - 2 - 3) \bigg]\bigg[ (14 + ( - 21))/( 2 - 8) \bigg] \\`

`\sf \longrightarrow \: \bigg[ (4 - 5)/( - 2 - 3) \bigg]\bigg[ (14 - 21)/( 2 - 8) \bigg] \\`

`\sf \longrightarrow \: \bigg[ ( - 1)/( - 5) \bigg]\bigg[ ( - 7)/( - 6) \bigg] \\`

`\sf \longrightarrow \: (1)/( 5) * ( 7)/( 6) \\`

`\sf \longrightarrow \: (7)/(30) \\`

C) 7/30 ✅

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`\sf \: 2. \bigg[ (7+ ( - 6))/( - 4 - 9) \bigg]\bigg[ (20 + ( - 45))/( 8 - 2) \bigg] \\`

`\sf \longrightarrow\bigg[ (7 + ( - 6))/( - 4 - 9) \bigg]\bigg[ (20 + ( - 45))/( 8 - 2) \bigg] \\`

`\sf \longrightarrow\bigg[ (7 - 6)/( - 4 - 9) \bigg]\bigg[ (20 - 45)/( 8 - 2) \bigg] \\`

`\sf \longrightarrow\bigg[ (1)/( - 4 - 9) \bigg]\bigg[ ( - 25)/( 8 - 2) \bigg] \\`

`\sf \longrightarrow\bigg[ (1)/( - 13) \bigg]\bigg[ ( -25)/( 6) \bigg] \\`

`\sf \longrightarrow \: ( - 25)/( - 78) \\`

`\sf \longrightarrow \: ( 25)/( 78) \\`

A] 25 / 78 ✅

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`\sf \: 3. \bigg[ (4+ ( - 5))/( - 2 - 4) \bigg]\bigg[ (18 + ( - 36))/( 7 - 3) \bigg] \\`

`\sf \longrightarrow \bigg[ (4+ ( - 5))/( - 2 - 4) \bigg]\bigg[ (18 + ( - 36))/( 7 - 3) \bigg] \\`

`\sf \longrightarrow \bigg[ (4 - 5)/( - 2 - 4) \bigg]\bigg[ (18 - 36)/( 7 - 3) \bigg] \\`

`\sf \longrightarrow \bigg[ (-1)/( - 6) \bigg]\bigg[ (18 - 36)/( 7 - 3) \bigg] \\`

`\sf \longrightarrow \bigg[ (-1)/( - 6) \bigg]\bigg[ (-18)/( 4) \bigg] \\`

`\sf \longrightarrow (18)/( - 24) \\`

`\sf \longrightarrow -(6)/( 8) \\`

`\sf \longrightarrow -(3)/( 4) \\`

C] -3/4 ✅

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`\sf \: 4. \bigg[ (7+ ( - 3))/( - 6 - 2) \bigg]\bigg[ (18 + ( - 6))/( 6- 7) \bigg] \\`

`\sf \longrightarrow \bigg[ (7+ ( - 3))/( - 6 - 2) \bigg]\bigg[ (18 + ( - 6))/( 6- 7) \bigg] \\`

`\sf \longrightarrow \bigg[ (7- 3)/( - 6 - 2) \bigg]\bigg[ (18 - 6)/( 6- 7) \bigg] \\`

`\sf \longrightarrow \bigg[ (4)/( - 6 - 2) \bigg]\bigg[ (12)/( 6- 7) \bigg] \\`

`\sf \longrightarrow \bigg[ (4)/( - 8) \bigg]\bigg[ (12)/( -1) \bigg] \\`

`\sf \longrightarrow (48)/( 8) \\`

`\sf \longrightarrow (6)/( 1) \\`

`\sf \longrightarrow 6 \\`

D] 6 ✅

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`\sf \: 5. \bigg[ (8+ ( - 2))/( - 5- 6) \bigg]\bigg[ (40 + ( - 48))/( 9 - 8) \bigg] \\`

`\sf \longrightarrow \bigg[ (8+ ( - 2))/( - 5- 6) \bigg]\bigg[ (40 + ( - 48))/( 9 - 8) \bigg] \\`

`\sf \longrightarrow \bigg[ (8 - 2)/( - 5- 6) \bigg]\bigg[ (40 - 48)/( 9 - 8) \bigg] \\`

`\sf \longrightarrow \bigg[ (6)/( - 5- 6) \bigg]\bigg[ (-8)/( 9 - 8) \bigg] \\`

`\sf \longrightarrow \bigg[ (6)/( - 11) \bigg]\bigg[ (-8)/( 1) \bigg] \\`

`\sf \longrightarrow (-48)/( - 11) \\`

`\sf \longrightarrow (48)/( 11) \\`

B] 48/11 ✅

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