1 . log25400

• A. $4$
• B. $5$
• C. $25$
• D. $50$

Answer: Option A

Explanation:

2 . log25400=x

• A. 4
• B. 5
• C. 8
• D. 20

Answer: Option A

Explanation:

3 . log25400=

• A. 7
• B. 4
• C. 5
• D. 3

Answer: Option B

Explanation:

4 . log25400=

• A. $4\sqrt{2}$
• B. $4\sqrt{5}$
• C. 4
• D. 3

Answer: Option C

Explanation:

5 . log25400 = x

• A. 6
• B. – 6
• C. 4
• D. 5

Answer: Option C

Explanation:

6 . log25400

• A. 4
• B. 5
• C. 20
• D. 25

Answer: Option A

Explanation:

7 . log25400=400x

• A. $4$
• B. $5$
• C. $8$
• D. $10$

Answer: Option A

Explanation: