• A. 9
• B. $9^x-1$
• C. $9^x+1$
• D. $9^{x-1}$

Answer: Option C

Explanation:

• A. 91
• B. 81
• C. 101
• D. 85

Answer: Option A

Explanation:

• A. 5
• B. 10
• C. 9
• D. 7

Answer: Option A

Explanation:

• A. 8
• B. 4
• C. 3
• D. 2

Answer: Option C

Explanation:

• A. 4.0
• B. 1.0
• C. 2.0
• D. 3.0

Answer: Option A

Explanation:

• A. a+b =0
• B. a-b=0
• C. a+b+1=0
• D. a+b-1=0

Answer: Option C

Explanation:

• A. ৬০%
• B. ৭০%
• C. ৮০%
• D. ৯০%

Answer: Option C

Explanation:

• A. $\frac{1}{3}$
• B. $-\frac{1}{3}$
• C. $\frac{1}{2}$
• D. $-\frac{1}{2}$

Answer: Option D

Explanation:

• A. 3
• B. 4
• C. 5
• D. 6

Answer: Option B

Explanation:

• A. a (a+b)
• B. $a^2\left(a+b\right)$
• C. a
• D. $a^2$

Answer: Option B

Explanation:

• A. 1 , 2 , 3 , 4
• B. 2 , 3 , 4
• C. 2 , 3 , 4 , 5
• D. ∅

Answer: Option D

Explanation:

• A. $\frac{৪}{২৭}$
• B. $\frac{৭}{৩৬}$
• C. $\frac{১১}{৪৫}$
• D. $\frac{২}{৯}$

Answer: Option A

Explanation:

• A. $18\sqrt{2}$
• B. $24\sqrt{3}$
• C. $8\sqrt{2}$
• D. $16\sqrt{2}$

Answer: Option B

Explanation:

• A. 3
• B. 9
• C. 7
• D. 6

Answer: Option B

Explanation:

• A. $\frac{1}{3}$
• B. $\frac{3}{4}$
• C. $\frac{1}{2}$
• D. $\frac{2}{3}$

Answer: Option C

Explanation: