Respuesta :
your answer is $1.75
5v + 7f     = 28.70
5v + 7(2.85)Â = 28.70
5v + 19.95Â Â = 28.70
5v         = 28.70 - 19.95
5v         = 8.75
v          = 8.75 / 5
v          = $1.75
To check: 5(1.75) + 7(2.85) = 8.75 + 19.95 = 28.70
5v + 7f     = 28.70
5v + 7(2.85)Â = 28.70
5v + 19.95Â Â = 28.70
5v         = 28.70 - 19.95
5v         = 8.75
v          = 8.75 / 5
v          = $1.75
To check: 5(1.75) + 7(2.85) = 8.75 + 19.95 = 28.70