please explain/answer both questions as they pertain to one main problem. i am just looking to verify my answers :)

Yaster Outfitters manufactures and sells extreme-cold sleeping bags. The table below shows the price-demand and total cost data, where: - p is the wholesale price (in dollars) of a sleeping bag for a weekly demand of x sleeping bags; - C is the total cost (in dollars) of producing x sleeping bags. Cost Model Find a linear regression model for the weekly cost data, using x as the independent variable. C(x)=mx+k Round m to 1 decimal place, and round k to the nearest integer. Use this cost model to answer questions 915 below. Use the cost model above to answer this question. Use the weekly cost model to estimate the total weekly cost when the weekly demand is 162. Round to the nearest dollar. Use the cost model above to answer this question. What is the per unit variable cost? Round to 1 decimal place. $ per sleeping bag