These questions represent conversions from one measurement system to another system. All of the answers will be approximations because the units are not even multiples of each other.
1. cable length in the United States is defined as 720 feet, but in England, it is defined as 608 feet. In both countries, a mile is defined as 5,280 feet
a. United States (5,280ft/mi ÷ 720ft/CL) • 4,145mi ≅ 30,397CL ≅ 3.04x104CL
b. England (5,280ft/mi ÷ 608ft/CL) • 4,145mi ≅ 35,996CL ≅ 3.6x104CL
2. a meter is defined as 3.28ft, so (5,280ft/mi ÷ 3.28ft/m) • 4,145mi ≅
6,672,438.6m ≅ 6.67x106m
3. a nautical mile is defined as 6,080ft, so (5,280ft/mi ÷ 6,080ft/Nmi) • 4,145mi ≅ 3,599.6Nmi ≅ 3.6x103Nmi