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Step-by-step explanation:

2-----»

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3-----»

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4-----»Area of rectangle= length× breath

let's , length=3a

breath=2a

Area of rectangle= 3a × 2a

= 6a²

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5----»

9x³y & 18x²y³

9x³y= 3×3×x×x×x×y

18²y³=2×3×x×x×y×y×y

Now, HCF= 3×3x×x×y

HCF=9x²y

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answer: b.48 for

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10