[Solved] How can variables help when creating a PHP program that calculates total price with tax? — Ans: Store price and tax rate separately, then calculate total | PHP

PHP - Variables and Data Types

How can variables help when creating a PHP program that calculates total price with tax?

AWrite the total price directly without variables

BUse variables only for text, not numbers

CStore price and tax rate separately, then calculate total

DVariables slow down calculations

Step-by-Step Solution

Solution:

Step 1: Understand the calculation process
Storing price and tax rate in variables allows easy calculation and updates.
Step 2: Evaluate options
Store price and tax rate separately, then calculate total correctly uses variables to hold values and compute total. Options A, C, and D are incorrect or misleading.
Final Answer:
Store price and tax rate separately, then calculate total -> Option C
Quick Check:
Variables store data for calculations [OK]

Quick Trick: Use variables to hold values for easy math [OK]

Common Mistakes:

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How can variables help when creating a PHP program that calculates total price with tax?