In one month Cassandra earned $400 at her part-time job, and $100 was withheld for federal income tax. Suppose she earns $600 next month. How much will be withheld for federal income tax?

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders