Answer:
6 is the ?
Step-by-step explanation:
$1.15 per 1 cup of orange juice
find unit cost: cost ÷ quantity
4.60 ÷ 4= 1.15
-16t^2+400=0
16t^2=400
take square root on both sides.
4t=20
t=20/4
t=5
Need to find the amount of the discount first
(9 - 6.75) = 2.25$
then find the %
(2.25/9) * 100 = 225/9 = 25%
