help please :(

The work measurement analyst in the Dorben Company wants to develop an accurate equation for estimating the cutting of various configurations in sheet metal with a band saw. The data fron actual cutting element provided the following information: Lineal (inches) Standard Time (hrs) Study No. 1 2 3 4 5 6 7 10 42 13 35 20 32 22 27 0.40 0.80 0.54 0.71 0.55 0.66 0.60 0.61 a. From the data collected, compute the intercept and slope constant a = b = b. Using regression line equations, how much standard time would you allow to cut a metal sheet with a length of 50 inches = 60 inches =