Jamilla collected data comparing the weight and cost of pieces of sterling silver jewelry. Her data is listed as (weight in ounces, cost in dollars): $(5,44.00),(8.5,78.50),(12,112.00),(10,93.00),(7,63.50),(9,83.20)$.

1. Plot the data on a set of axes.

2. Use a ruler to draw a line that best approximates the data.

3. Determine the equation of the line of best fit drawn in (b).

4. Use your equation to predict the cost of a 50-ounce silver bracelet.