cal, Bernie, and doc are college students on budgets. Sometimes the three have a little difficulty keeping to their budgets. their biggest problem is the rent. The rent for their apartment is $900, which is split evenly among the three roommates. the rent is due on the last day of each month.the guys don't get paid until the first day of the next month. Each student had a different amount of money after being paid on April 1. At the end of that day, cal had $1,110, Bernie had $800, and doc had$600, as the month goes by, they each occasionally note how much they had left at the end of the day. the table to the right shows the amount of money they have on each day. Amount of money remaining(In dollars)
day Cal Bernie Doc
April 3 996 766 570
April 10 704 698 490
April 17 440 626 430
1. sketch and label a graph that accurately represents this situation. show all three students on the same graph and create a key/legend with three colors.

2. who will be able to pay his rent on time, and who will not? how do you know?

3. It's April 21, and there's a great concert on campus. this would be an extra cost, beyond the three students' normal expenses. how much, if anything, can each one spend and still have enough time for rent money on the morning of April 30th?

4. suppose each roommate actually starts May with the same amount of money with which he started April. Find an equation for each roommate that will tell him how much money he should expect to have at the end of the xth of may if his spending habits do not change.
cal m= b=
Bernie m= b=
doc m= b=