please hurry

Consider the calibration data in the table below. a. (1 points) Construct the calibration plot (as in Project 1). Report the slope of your plot. b. (1 point) Report the y-intercept of your calibration plot. C. (1 point) From your calibration plot, what is the molar absorptivity of [Fe(SCN)]2+ ? d. (1 points) Calculate the concentration of [[Fe(SCN)]2+] if the absorbance of an unknown [Fe(SCN)]2+ solution is 0.460