Help please?

How can you construct perpendicular lines and prove theorems about perpendicular lines

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

Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele‘s current age?