Answer :
Answer:
$400.
Step-by-step explanation:
Let x represent original cost.
$320 = x - .2x
$320 = .8x
$320/.8 = x
320/.8 = 400 = x
Answer:
$400.
Step-by-step explanation:
Let x represent original cost.
$320 = x - .2x
$320 = .8x
$320/.8 = x
320/.8 = 400 = x