Explanation

Let's solve the equation:

4^(2n+3) = 8^(n+5)

Expressing both sides with base 2:

(2^2)^(2n+3) = (2^3)^(n+5)

2^(4n+6) = 2^(3n+15)

Equating exponents:

4n + 6 = 3n + 15

4n - 3n = 15 - 6

n = 9

Explanation

Passive voice focuses on the object receiving the action.

An interrogative sentence like “Did he read the book?” is active voice because the subject performs the action.

Explanation

“Take off” refers to an airplane leaving the ground and starting its flight.

It is the initial phase of a flight before cruising at altitude.

Explanation

Abrasion occurs when wind carries sand and dust, wearing down rock surfaces.

It is a common feature in desert and arid regions shaped by air action.

Explanation

“Run out” means to use up completely.

The sentence implies there is no milk left, so a stop at the store is needed.

Explanation

“Broke into” means forcefully entering a place, often used for theft or robbery.

The robber’s horse rider entered the village with the intention of robbery.

Explanation

A comma is used after salutations in letters or emails.

It separates the greeting from the main body of the message.

Explanation

POP3 (Post Office Protocol 3) downloads emails to the local device and can delete them from the server.

It is used for offline email access and managing emails on a single device.

Explanation

The Prophet (SAW) had deep love and respect for Hazrat Khadija (R.A).

His monogamy reflected loyalty and commitment throughout her lifetime.

Explanation

Talah bin Ubaida protected the Prophet (SAW) during the Battle of Uhud.

His bravery ensured the safety of the Prophet in a critical moment of the battle.