In the following table R(t) is the quarterly revenue for an international tortilla producer t quarters after December 1999. Use the table to answer the following questions.

Find R(t) where t=4.
What was the revenue 2 quarters after 1999..
What does t equal when R(t) = 486.

(In other words, how many quarters after 1999 did the tortilla producer have a revenue of 486 million.).

Quarter Revenue in Millions of Dollars
1 460
2 452
3 474
4 483.8
5 486.0

To find R(t) where t = 4, we need to locate the row in the table where t = 4. In this case, it is the fourth row in the table. Looking at the data in that row, we can see that R(t) is 483.8 million dollars.

To find the revenue 2 quarters after 1999, we need to locate the row in the table where t = 2. In this case, it is the second row in the table. Looking at the data in that row, we can see that the revenue 2 quarters after 1999 is 452 million dollars.

To find when R(t) = 486, we need to scan through the table and find the row where R(t) is 486 million dollars. In this case, it is the fifth row in the table. Looking at the data in that row, we can see that t = 5. Therefore, it took 5 quarters after 1999 for the tortilla producer to have a revenue of 486 million dollars.