Can you help me with this statistic problem? Thank you

Model 2: Estimate Std. Error (Intercept) 1.31 0.875 0.05 0.018 0.34 0.164 Multiple Rsquared: 0.630 F-statistic: 19.6 on 2 and 23 DF, p-value: 1.1e-05 e) Write the estimated MR equation for Model 2 and interpret b2 in context. f) Interpret the multiple coefficient of determination. g) Estimate the happiness index for a country where the life expectancy is 75 years and the freedom index is 4.0. h) Conduct a NATDRC model utility test at a 0.05 level of significance