Hello!
An equation has an (=). They equal something. For example, 1+1=2 is an equation.
An expression does not have an equal sign. For example, 2 or 1+3 are both expressions. They have no equal sign.
I hope this helps!
I think you could times 4 and 5 to get 20
Add 40 plus 32, it equals 72 because he wrote 40 popular songs and 32 songs.
