Question

Jamie spenta total of $11.60 on 5dentical pens and a ruler .A rulercost$1.30less than a pen .how much did a pen cost?

Answer 1

5*Pen+ruller=11.60
ruler=Pen-1.30
5Pen+Pen-1.30=11.60
Pen=12.90/6=2.15

Answer 2

Please gelp me

Answer 3

I don't understand it is not clear for me