Answer:
75900000
Step-by-step explanation:
75,900,000 because it's less then 50
Answer:
simultaneous equations
Step-by-step explanation:
phils age =7x
Peter age=x
scenario 2
phils age = 4(7x)
Peter age= 2x-2

Answer: 16,000,000
Step-by-step explanation:
The answer is 345 students.
I did reverse math(i don't remember the name)
138/.4=345
Now check it:
345*.4=138
I hope I helped somehow!