Explanation

30% of 50 students = (30/100) × 50 = 15

So, 15 students received an A grade.

Explanation

An exclamation mark expresses strong emotion or urgency.

"Watch out" is a warning that needs emphasis.

Explanation

Geostationary satellites orbit directly above the equator to match Earth's rotation and appear stationary.

This position ensures constant coverage of the same Earth area, ideal for communication and weather monitoring.

Explanation

Rock candy forms when a supersaturated sugar solution cools and sugar crystals gradually crystallize out.

It shows crystallization from a supersaturated solution, not just a simple saturated one.

Explanation

A transitive verb is a verb that requires a direct object to complete its meaning.

In the sentence "The boy threw the ball," "threw" is the transitive verb, and "the ball" is the direct object.

Explanation

Let's factor:

2x^3 + 16

= 2(x^3 + 8)

= 2(x + 2)(x^2 - 2x + 4)

Explanation

Let the price of one candy be x and one chocolate be y; then 5 candies and 3 chocolates cost 85.

So, the equation is 5x + 3y = 85.

Explanation

Vast means وسیع

Immense means وسیع

Explanation

The Executive is responsible for implementing the laws made by the legislature.

It includes government officials, agencies, and departments that carry out and enforce laws.

Explanation

Carrying capacity refers to the maximum number of organisms (like cattle) that an environment (like grassland) can sustain without degradation.

It depends on available resources such as food, water, and space.