Mathematical expressions

Melody is organizing a bake sale and making a program to help her plan the ingredients.

Each batch of cookies requires 3 eggs, and she's going to make 9 batches. This code calculates the total eggs required:

eggsInBatch ← 3 
numBatches ← 9
neededEggs ← eggsInBatch * numBatches

Melody realizes she'll need to buy more eggs than necessary, since she needs to buy eggs by the dozen.

Now she wants to calculate how many eggs will be leftover in the final carton of eggs. That will help her decide whether to make extra icing.

Which line of code successfully calculates and stores the number of leftover eggs in the final carton?

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This code is written in pseudocode. You can't actually run pseudocode, but we use it for planning programs and for thinking about code independently of specific programming language.

AP CSP exam questions use pseudocode, so it's helpful to become familiar with it.

Here is a reference for the pseudocode used here:

Instruction	Explanation
`a ← expression`	Evaluates `expression` and assigns the result to the variable `a`.
`a + b`	Evaluates to the result of `b` added to `a`
`a - b`	Evaluates to the result of `b` subtracted from `a`
`a * b`	Evaluates to the result of `a` multiplied by `b`
`a / b`	Evaluates to the result of `a` divided by `b`
a `MOD` b	Evaluates to the remainder when a is divided by b. Assumes that `a` and `b` are positive integers.

AP®︎/College Computer Science Principles

Course: AP®︎/College Computer Science Principles > Unit 3

Problem