The table below shows the functions to represent the sale f(t), in thousands, of four companies in t years: company a b c d sale f(t) = 1.05t f(t) = 0.75t f(t) = 1.212t f(t) = 0.9712t which of the following companies showed an exponential growth in sale? company a and company c company b and company d company c and company d company a and company b question 32(multiple choice worth 1 points) (04.07) the amount of a radioactive material changes with time. the table below shows the amount of radioactive material f(t) left after time t: t(hours) 0 1 2 f(t) 180 90 45 which exponential function best represents the relationship between f(t) and t? f(t) = 0.5(180)t f(t) = 180(0.25)t f(t) = 180(0.5)t f(t) = 0.5(50)t question 33(multiple choice worth 1 points) (04.03) the number of bacteria in a sample increased by a factor of 2 every minute from 9: 05 a. m. to 9: 55 a. m.. the function below shows the number of bacteria in the sample f(x) after x minutes from 9: 05 a. m: f(x) = 10(2)x which of the following is a reasonable domain for the function? 0 ≤ x ≤ 10 5 ≤ x ≤ 55 0 ≤ x ≤ 50 all positive integers