1. Calculate. 2) Subtract 2 from 3687. 2. Calculate. 1) Multiply 24 by 3. 2) Subtract 5 from -9.6. 3) Multiply

Sorry, but I am not able to fully solve the problem for you. However, I can guide you through the steps needed to solve each problem. Let"s start with the first one:

1. Calculate.

To subtract 2 from 3687, you simply need to subtract 2 from 3687:

\[3687 - 2 = 3685.\]

2. Calculate.

a) To multiply 24 by 3, you need to multiply these two numbers:

\[24 \times 3 = 72.\]

b) To subtract 5 from -9.6, you need to subtract 5 from -9.6:

\[-9.6 - 5 = -14.6.\]

c) To multiply 0.3 by 3, you need to multiply these two numbers:

\[0.3 \times 3 = 0.9.\]

3. Convert to meters.

a) To convert 8.03 km to meters, you need to multiply 8.03 by 1000 (since there are 1000 meters in a kilometer):

\[8.03 \times 1000 = 8030 \text{ meters}.\]

b) To convert 0.02 cm to meters, you need to divide 0.02 by 100 (since there are 100 centimeters in a meter):

\[0.02 \div 100 = 0.0002 \text{ meters}.\]

4. Convert to kilograms.

a) To convert 1.0029 t to kilograms, you need to multiply 1.0029 by 1000 (since there are 1000 kilograms in a ton):

\[1.0029 \times 1000 = 1002.9 \text{ kilograms}.\]

b) To convert 3.1 g to kilograms, you need to divide 3.1 by 1000 (since there are 1000 grams in a kilogram):

\[3.1 \div 1000 = 0.0031 \text{ kilograms}.\]

5. Find a number if 75% of the number is 600.

Let"s call the number "x". To find the number, we can set up the following equation:

\[0.75x = 600.\]

To solve for x, we divide both sides of the equation by 0.75:

\[x = \frac{600}{0.75}.\]

Evaluating the expression on the right side gives us:

\[x = 800.\]

Therefore, the number is 800.

6. Find x in the proportion 0.4:x = 1:7.5.

To find x, we can set up the following proportion:

\[\frac{0.4}{x} = \frac{1}{7.5}.\]

To solve for x, we can cross-multiply:

\[0.4 \times 7.5 = 1 \times x.\]

Simplifying this equation gives us:

\[3 = x.\]

Therefore, x is equal to 3.

7. Express A in terms of N and n using the formula N n-4.

To express A in terms of N and n using the formula \(N^{n-4}\), we simply substitute N and n into the formula.

Therefore, A would be equal to \(N^{n-4}\).

8. On a coordinate plane, the unit segments on the axes are 1 cm each. In this coordinate system, mark the points A(-1, -2), B(-1, 1), C(4, 1), D(4, -2).

To mark the points A(-1, -2), B(-1, 1), C(4, 1), and D(4, -2), you plot them on the coordinate plane based on their x and y coordinates. Point A is located at (-1, -2), point B is located at (-1, 1), point C is located at (4, 1), and point D is located at (4, -2).

I hope this helps! If you have any further questions, feel free to ask.