Consider the following data for a dependent variable y and two independent variables, $1 and $2. 1131 a32 y 29 12 94 46 11 109 25 18 113 51 16 179 41 6 95 51 19 176 74 8 170 36 12 118 60 13 143 77 17 211 Enter negative values as negative numbers, if necessary. a. Develop an estimated regression equation relating y to 31. (Round your answers to two decimal places.) :1} = + $1 Predict y if 931 = 45. (Round your answer to the nearest whole number.) 3;: = b. Develop an estimated regression equation relating if; to $2. (Round your answers to two decimal places.) 5' = + $2 Predict y if $2 = 15. (Round your answer to the nearest whole number.) zz c. Develop an estimated regression equation relating y to $1 and 32. (Round your answers to two decimal places.) .1}: + $1 + $2 Predict y if 931 = 45 and $2 = 15. (Round your answer to the nearest whole number.) i}