$4
You round it to the nearest dollar which would be 20 and then 20% of $20 is 4
Answer: 16 hours
Step-by-step explanation:
Given
Carla earns for each hour she works
Last week she earned $148 total including tip
So, the sum of hourly income and must be equal to the total money earned
Suppose she works for hours
Thus, she works 16 hours last week
4x-x-7x just combine all like terms 4x-x=3x rewrite 3x-7x= -4x. 4x-x-7x=-4x
Hope this helps have a nice day