3.) What is a fixed quantity that has a specific value and does not change?
a. Expression
b. Variable
4.) What do you call a quantity with no specific value and is represented by small letters of the
alphabet?

A constant is a fixed quantity that always retains its specific value throughout calculations, like the number 5 or the value of . They’re like steadfast friends in math—always reliable and never changing! In contrast, variables, often represented by letters like or , love to keep us on our toes by taking on different values depending on the context of the problem.

Variables are essential in algebra and beyond; they allow us to formulate equations and express relationships. Imagine being an engineer designing a bridge—variables can represent things like weight or stress, adapting to different scenarios. So, just like a superhero’s identity can change but the hero remains, variables can shift while still helping you solve a wide array of problems!