I need some help

Question

Tate earns $10.50 per hour for a 40 hour week. He earns time and a half (1 1/2 times the normal $10.50 per hour rate) for all hours worked OVER 40 hours. Answer the following question based on his information.

This week Tate worked 50 hours, 10 hours overtime.  
How much was his total paycheck for the 50 hours worked?

Answer 1

For the first 40 hours he earned 40*10.50=$420. For 10 hours overtime he earned 10*10.50*1.5=$157.50. For the 50 hours he earned 420+157.50=$577.50.