Her hourly rate of pay would be $14.1 an hour because $112.8 divided by 8 is $14.1
Answer:
itself and numbers divisible by 7
X - Ollie's age
8 is subtracted from Ollie's age = x-8
the result is the same as
subtracting 16 from 3 times his age = 3x-16

Ollie is 4 years old.