1. **Problem:** Find the total surface area of the ramp. 2. **Given:** Ramp dimensions include a length of 170 ft and a width of 12 ft. 3. **Formula:** Surface area of a rectangular ramp is calculated by $$\text{Area} = \text{length} \times \text{width}$$. 4. **Calculation:** $$170 \times 12 = 2040$$ square feet. 5. **Problem:** Find the total cost of materials for the ramp. 6. **Given:** Cost per square foot is 2.20. 7. **Formula:** Total cost = Surface area $\times$ Cost per square foot. 8. **Calculation:** $$2040 \times 2.20 = 4488$$. 9. **Problem:** Find the lateral surface area of the foam pit to be lined with extra padding. 10. **Assumption:** Without specific dimensions, assume lateral surface area equals the ramp surface area for lining. 11. **Answer:** The lateral surface area lined with padding is $$2040$$ square feet. **Final answers:** - Total surface area of the ramp: $$2040$$ square feet. - Total cost of materials: $$4488$$. - Area lined with extra padding: $$2040$$ square feet.