Answer:
R= 4
So that means
15(4)-6(4)=36
The (4) in parenthesis means multiply.
Step-by-step explanation:
Let the initial height of the tree.
It is given that the tree grows inches every month.
So,in months,the tree grows inches.
The final height of the tree after months is the sum of its initial height and its growth in months.
So,
Given that
So,
So,