Write a proportion for each question, using a question mark in place of the missing number. Use the proportion to find the missing number. Then check your answers in the Gizmo. (Note: The last one cannot be modeled in the Gizmo.) A: girls:total students= 3:7, girls = 12, Boys = ? / the proportion
B: boys:total students = 2:9, girls = 21, Boys = ? / the proportion
C: girls:boys = 2:3, boys = 225, Total students =

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