A pen costs $p. The expression 6p + 4 represents the total cost of buying some pens and a ruler. What is the cost of the ruler?
Show Worked Solution
Worked Solution
Step 1: Read the expression term by term: 6p means 6 pens each costing $p; + 4 means a fixed amount of $4 added.
Step 2: The constant term (the number without a letter) represents the ruler's cost.
Final answer: The ruler costs $4.
Answer: $4
Correct answer: $4
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