Asix character secret code can begin with any two of five vowels and end with four numerals from 0 to 9. if the numerals cannot repeat, how many secret codes can be formed?
(i need this answer, put the question up an hour ago and nobody even looked at it, , i made it worth 27 points now)

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1