Answer:
4(3 + 2x)(-3 + 2x)
Step-by-step explanation:
Answer:
8 children
This is because if he has one son, then every daughter has one brother. Therefore, if he has four sons, each of his daughters have four brothers.
So it's 4x-5 equal to -20 to the second power
-20x-20 =400
The answer is 400
60 minutes in an hour
60÷12=5
1,000 meter in 1 km
5×1=5
5×1000=5000
therefore, 5000 meters
"d increased by the product of k and f" is d+kf
49/(d+kf)
The final answer is 49/(d+kf)~