Respuesta :
3x = $2.10
Divide by 3 on both sides.
x = $0.70
For four pieces, $0.70 x 4 = $2.80
Hope it helped! :)
Divide by 3 on both sides.
x = $0.70
For four pieces, $0.70 x 4 = $2.80
Hope it helped! :)