Metamorphic Rocks Lesson #14 Rocks are formed on Earth as igneous, sedimentary, or metamorphic rocks. Igneous rocks form when rocks are heated to the melting point which forms magma. Sedimentary rocks are formed from the cementing together of sediments, or from the compaction (squeezing together) of sediments, or from the recrystallization of new mineral grains which are larger than the original crystals.
Roadside assistance plans typically do not include any needed repairs. Having a flat tire patched can cost $0-$60, depending on type of tire. Replacing a typical car battery can cost $50-$220.
1 For example, the Hankook Optimo H727 with a 100,000-mile or five-year warranty costs about $65-$85 for a 14 wheel and $140-$170 for 18. 2  CostHelper readers report paying $50-$290 per tire for car tires (in sets of two or four), at an average cost of $139 per tire, installed. Some shops include a valve stem, tire mounting and wheel balancing in the cost of the tire, while others may charge an additional $2-$25 per wheel for these needed installation services.