10. Please solve

The sales of a small company were $42,000 in its fourth year of operation and $62,000 in its sixth year. Let y represent sales in the xth year of operation. Assume that the data can be approximated by a straight line. (a) Find the slope of the sales line, and give an equation for the line in the form y = mx + b. (b) Use your answer from part (b) to find out how many years must pass before the sales surpass $110,000. (a) The slope is and the equation is y - x + (Type integers or decimals.) (b) The sales will surpass $110,000 in years. (Round up to the nearest year.)