please help with these 2

A large company is accused of gender discrimination in wages. The following model has been estimated from the company's human resource information WAGE= 12+0.BEDU+0.5EXPER - 2 FEMALE Where WAGE is hourly wage measured in dollars. EDU is years of education, EXPER I years of relevant experience, and FEMALE indicates the employee is female. Holding all else constant, on average how much more a man with 5 years of experience at the former compared to a female with 3 years of experience? O a. 53 O b.51.5 O $2.5 O d. 52 Consider the following regression model and corresponding output for a dataset with n = 104 observations: y=B1 + B2X2+B3X3 + Boxa+u Variable B Std. Error t P>It -0.012 0.006 -2.289 0.022 X3 0.596 0.014 41.139 0.000 0.836 0.647 Constant 8.860 1.766 5.017 0.000 X2 X4 What is the standard error of x(approximate at least to 3 decimal places)