Answer

step by step Explanation
The functions given are


We want to find:

This implies that

Let us now simplify

This implies that

Combine the terms to get,

Answer:
1/3
Step-by-step explanation:
rise over run
Answer:
21 flowers
Step-by-step explanation:
because if dora can plant 18 plants then Charlie can plant 21 flowers
This question is easier than it seems. If there are 9 consecutive integers with the mean being 16, then 16 must be the median. So just add four on top and four below 16 to give you your range of 9 values, 12-20. 12+13+14+15+16+17+18+19+20=144, 144/9=16. So the mean of the first four numbers is (12+13+14+15)/4= 13.5. If you check, 13.5 is also the median of these four numbers.
After 2 years-$4608
After 4 years-$4246.73
After 7 years-$3757.24