Convert the following units of length A) 2.2 miles to yards B) 5.8 kilometers (km) to meters (m) C) 904 meters (m) to kilometers (km) D) 12 cm to inches 

Let's solve these conversions step by step:

### A) Convert 2.2 miles to yards
We know that:
- 1 mile = 1760 yards

So:
\[
2.2 \, \text{miles} \times 1760 \, \text{yards/mile} = 3872 \, \text{yards}
\]
**Answer:** 2.2 miles = 3872 yards

### B) Convert 5.8 kilometers to meters
We know that:
- 1 kilometer = 1000 meters

So:
\[
5.8 \, \text{km} \times 1000 \, \text{m/km} = 5800 \, \text{m}
\]
**Answer:** 5.8 kilometers = 5800 meters

### C) Convert 904 meters to kilometers
We know that:
- 1 kilometer = 1000 meters

So:
\[
904 \, \text{m} \div 1000 = 0.904 \, \text{km}
\]
**Answer:** 904 meters = 0.904 kilometers

### D) Convert 12 cm to inches
We know that:
- 1 inch = 2.54 cm

So:
\[
12 \, \text{cm} \div 2.54 = 4.7244 \, \text{inches} \, (\text{rounded to four decimal places})
\]
**Answer:** 12 cm = 4.7244 inches

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Do you want further details on any of these calculations or have any questions?

### Related Questions:
1. How do you convert between square miles and square yards?
2. What is the conversion factor from kilometers to miles?
3. How many inches are there in a meter?
4. What is the formula to convert centimeters to feet?
5. How can you convert 3 miles into feet?

**Tip:** When converting between units, always ensure you are using the correct conversion factor by checking reference tables if needed.

Convert the following units of length A) 2.2 miles to yards B) 5.8 kilometers (km) to meters (m) C) 904 meters (m) to kilometers (km) D) 12 cm to inches

Solve unit conversion problems like converting 2.2 miles to yards, 5.8 kilometers to meters, 904 meters to kilometers, and 12 cm to inches. This step-by-step guide covers both the metric and imperial systems, helping students in Grades 5-8 master basic unit conversions.

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