87. Solving a chemistry problem

428. For the reaction in an aqueous solution (CH3)3CBg H2O → (CH3)3COH H Br-, the following data were obtained at a temperature of 298K:
t, hour 1.389 5.56 11.11 16.67 27.78 41.67
[(CH3)3CBr], mol/l 0.0380 0.0308 0.0233 0.0176 0.01 0.00502

Based on these data, determine 1) the order of the reaction with respect to (CH3)3CBr, 2) the rate constant, 3) the initial concentration