I need help fast please help me am on a test

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

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?