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CALCULATE (SHOW ALL WORK on SEPARATE PAGE) (2 POINTS EACH) Questions 31 through 35 31 If y-hat = 49x + 101, calculate y-hat when x = 4. 32 If y-hat = 2,300 = 230x - 120, calculate x 33 If y-hat = 50,000 + 300 x, + 200 X2 + 100 x3, calculate y-hat when x,=15, X2=13, X3 =11 34 If y-hat = 640 - .105 x, + .124x2, calculate y-hat when x1=14,000, X2=11,000 35 If the COD is .81, what does that mean