'Have' should be 'has' because 'each' is singular.

'Was' should be 'were' because the subject 'students' is plural.

'On cloud nine' is an idiom that means to be very happy.

'Pull the trigger' is an idiom that means to make a decision or take action.

'They are bringing their friends.' uses 'their' correctly as a possessive pronoun.

'Carrot' is a vegetable, while the others are fruits.

The logical sequence of times of day is 'Sunrise, Noon, Sunset'.

The conclusion is valid because a parent cannot also be a child in the same relationship context.

The conclusion is valid due to the transitive property of height.

The area outside both circles represents entities that are neither birds nor flying animals.

The statement 'Some flying animals are not birds' is true, as there are flying animals like bats.

The conclusion is valid because a square is a specific type of rectangle, but not all rectangles are squares.

Since 'X' equals 'Y' and 'Y' is greater than 'Z', it follows that 'X' is also greater than 'Z'.

The relationship is not defined, but if 'X' relates to 'Y' in a certain way, 'A' would relate to 'B' in the same way.

The overlap signifies cars that are also electric vehicles, indicating a shared characteristic.

4 books at $15 each costs 4 * 15 = $60.

A right turn from West will lead the car to face North.

At 60 miles per hour, in 3 hours the car will travel 60 * 3 = 180 miles.

The car travels 60 miles per hour. In 3 hours, it will travel 60 * 3 = 180 miles.

Cutting costs often leads to increased profits as expenses are reduced.

'In the red' means the company is operating at a loss or in debt.

The volume of a cube is calculated as side³. Therefore, 4 cm × 4 cm × 4 cm = 64 cm³.

Surface area = 6s². Therefore, 150 = 6s², s² = 25, s = 5 cm.

If the edge is increased by 50%, the new edge length is 1.5 times the original. The volume increases by (1.5)³ = 3.375 times, which is an increase of 237.5%.

If the side is doubled, the new volume is (2s)³ = 8s³, which is eight times the original volume.

Surface area of a cube = 6s², so 6s² = 150 cm², thus s² = 25 cm², and s = 5 cm.

The side length is the cube root of the volume. Thus, side = ³√27 = 3 cm.

The volume of a cuboid is calculated as length × width × height. Therefore, 10 cm × 5 cm × 1 cm = 50 cm³.

Volume = base area × height. Therefore, base area = Volume / height = 120 cm³ / 5 cm = 24 cm².

All numbers on a fair die (1-6) are equally likely to appear, each with a probability of 1/6.