Hi there!
Your question is:
A tutor earn 25 dollars how much will she earn if she tutors for 4 hours
If the tutor works for 4 hours, and makes 25 dollars PER hour, she would make a total of $100!
25 x 4 = 100
25 + 25 + 25 + 25 = 100.
One hundred dollars is your answer!
I hope this helps! Don't hesitate to ask me anything else if you need help!
Stay Crazzzzzy! xD