Dayanara was given $5000 when she turned 5 years old. Her parents invested at a 7% interest rate compounded annually. No deposits or withdrawals were made. What expression can be used to determine how much money she had in the account when she turned 21? Guys please help me need ASAP

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