Answer:

Step-by-step explanation:
Given:

Then the composition of functions:

where we have written the final functional expression in its standard form.
Answer
The last one
y+2=-(x+8)
11.9 would be the correct answer I believe
Answer:

Step-by-step explanation:
The above question is in the form of an exponential decay. The equation for an exponential decay is given by:

where y and x are variables, b < 1, a is the initial value of y (that is the value of y when x = 0).
Let y represent the number of trees left and x represent the number of months. Given that there is currently 2.5 billion trees, therefore a = 2.5 * 10⁹, b = 0.5% = 0.005. The equations becomes:
