Respuesta :

ItzTds

It is given that,

→ Mary has 55 pens.

→ Frazer has 12 pens.

We have to,

find what is the difference.

The formula we use,

→ Mary's pens - Frazer's pens

Let's subtract,

→ 55 - 12

→ 43 pens

Hence, difference is 43 pens.