To write the variable expression which describe the pattern shown in the table provided in the question.

Answer to Problem 54E
The complete table is :
Cost of item (dollars) | 1.00 | 2.00 | 3.00 | 4.00 | … |
|
Cost of tax (dollars) | 1.05 | 2.10 | 3.15 | 4.20 | … |
|
Explanation of Solution
Given information:
Consider, the table provided in the question,
Cost of item (dollars) | 1.00 | 2.00 | 3.00 | 4.00 | … | n |
Cost of tax (dollars) | 1.05 | 2.10 | 3.15 | 4.20 | … | ? |
Calculation:
From the table provided in the question, it can be observed that the cost of each item is $1 and tax on each item is $0.05.
Hence,
The variable expression for Cost of n items is
The variable expression for Cost with tax of n items is obtained as:
The complete table is shown below:
Cost of item (dollars) | 1.00 | 2.00 | 3.00 | 4.00 | … |
|
Cost of tax (dollars) | 1.05 | 2.10 | 3.15 | 4.20 | … |
|
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