Respuesta :
Step-by-step explanation:
if you don't see it right away, just use x = 1 and see :
y = 0.8×1 = 0.8
so the unit cost (= the cost of 1 unit) = 0.8
answer =0.8
Step-by-step explanation:
if y is the cost of x bubble gum where 0.8 is the value for one then o.8 is the unit