Please answer the questions below asap

Question 1 The function e4x +84x f(x)= 5 is 0 an even function 0 an odd function 0 neither an even nor an odd function. Question 2 If f (x) = x+3 and g (x) = then ( f . f ) (x ) is O 2x+6 3x+11 3x+9 2 O 2x 3+3x O x O None of the aboveQuestion 3 Let the function M(t) denote the mass of bacteria culture (in mg) at time t days. The average rate of change of M(t) is 1.5 mg/day over the time interval [2, 7] and is 0.3 mg/day over the time interval [4, 7]. The average rate of change of M(t) over the time interval [2, 4] is O 5.2 mg / day $1 mg / day 6.6 mg / day 4.7 mg / day 5. 1 mg / day ONone of the above