The original sales figure for Product C in Q3 was 300 units; a 20% increase would result in 360 units.

If Product C sells 200 units in Q4, the expected total sales for the year would be 1300 units.

If Product C sells 200 units in Q4, the total sales for the year would be 1300 units.

The sales increased to 400 units in Q3, which is a 100% increase from Q1.

The sales increased to 400 units in Q2, which is a 100% increase from Q1.

The sales in Q2 were 420 units, which is a 40% increase from Q1.

If Product D sold 200 units in Q3, doubling that would result in 400 units in Q4.

If Product D's sales in Q3 were 200 units, doubling it would result in 400 units.

The original sales figure for Product D in Q3 was 300 units; a 20% increase results in 360 units.

The average sales per quarter for Product D is 250 units, calculated from the total sales.

Let the first term be a. The second term is a * r = a * 3 = 12, thus a = 12/3 = 4.

Let the first term be a. The second term is a * r = a * 2 = 12, thus a = 12/2 = 6.

Let the first term be a. The second term is a * r = a * 3 = 12, thus a = 12/3 = 4.

Let the first term be a. The second term is a * r = a * 3 = 6. Thus, a = 6/3 = 2.

Let the first term be a and the common ratio be r. Then, 8 = ar and 32 = ar^3. Dividing these gives r^2 = 4, so r = 2.

The passage implies that if selections are not made carefully, it could lead to regret and missed opportunities, highlighting the importance of thoughtful decision-making.

The passage implies that if selections are not made wisely, it could lead to a lack of direction and purpose, highlighting the importance of thoughtful decision-making.

Altering the selections would likely change the meaning and interpretation significantly, as the author emphasizes the impact of choices.

The author implies that excluding contemporary authors would limit students' engagement with current issues, thereby reducing the relevance of the curriculum.

The arrangement 'On the mat sat the cat.' maintains the original meaning.

The correct arrangement maintains the original meaning and structure of the sentence.

The first option presents a coherent flow of ideas, making it the most logical arrangement.

In the arrangement, 3 is to the left of 5 and 7 is to the right of 5, making 5 the middle number.

A triangle with sides in the ratio 3:4:5 is a right-angled triangle, as it satisfies the Pythagorean theorem.

Using SI = PRT, we have 150 = P * 0.05 * 3. Solving for P gives P = 1000.

Using SI = PRT, we have 300 = P * 4/100 * 5. Solving for P gives P = $1500.

Substituting x = 2 into the equation gives 4(2) + 5y = 20, leading to y = 0.

If all squares are rectangles, it implies that there are rectangles that are not squares, thus some rectangles are not squares.

Since all cats are mammals and some mammals are not dogs, it follows that some cats are not dogs.

The sum S of an infinite GP is given by S = a / (1 - r). Here, 20 = a / (1 - 1/4) = a / (3/4). Thus, a = 20 * (3/4) = 15.