Answer:
40 ¢
0Step-by-step explanation: 25 + 10 + 5 = 40
It’s 3.9 because if you write out the metric system K H D L D C M. From milliliters to liters is three spaces so for the num. 3900 go backwards three spaces
Answer:
72
Step-by-step explanation:
If the rates d and c are flowers per day, we have ...
150/d = 120/c
d -c = 18
__
Multiplying the first equation by cd/30, we have ...
5c = 4d
Multiplying the second equation by 4 gives ...
4d -4c = 72
Adding these equations together, we get ...
5c +4d -4c = 4d +72
Simplifying and subtracting 4d leaves ...
c = 72
Charlie can plant 72 flowers per day.
The scale factor is 2 or 200%
