Problem 60)
Solution
Part 1
Joy earns $8 per hour. She earns $128 per month.
The number of hours worked in each month = 128/8 = 16 hours.
She works 16 hours each month in order to earn $128.
Part 2
After six months she gets a $2 per hour raise.
Now her earning per become $10.
She works 16 hours each month.
Joy earning per month = 16*10 = $160.
Hope you will understand the solution. Thank you :)