Answer:
$7.5
Step-by-step explanation:
4 bottles cost = $5
Then 1 bottle costs:
$5/4 = $1.25
Then 6 bottles cost:
$1.25*6 = $7.5
(x,y) =(7/2,4)
95 cents
3.80/4 = 0.95
see the picture attached for further explanation.