I need help with this one

Question 5 1 pts A survey conducted by a research team was to investigate how the education level, tenure in current employment, and age are related to annual income. A sample of 20 employees is selected and the data are given below. Education (No. of Length of tenure in current Age (No. of years) employment (No. of years) years) Annual income ($) 17 8 40 124,000 12 12 41 30,000 20 44 193,000 14 42 88,000 12 19 27,000 14 28 43,000 12 43 96,000 18 37 110,000 16 36 88,000 11 39 36,000 16 36 81,000 12 22 38,000 16 45 140,000 13 42 11,000 11 18 21,000 20 40 151,000 19 35 124,000 16 38 48,000 12 19 26,000 10 44 124,000 Estimate a linear regression model (equation) that can be used to predict annual income from the other 3 variables. How much variation in annual income is explained by the model (i.e., by the 3 independent variables)? Enter your answer as a percentage to 2 decimal places, but do not include the % sign in the box below