Answer:
60 packets
Step-by-step explanation:
Given that :
Unit cost of 20 packets
$5.49 / 20 =$0.2745
Unit cost of 60 packets :
$10.97 / 60 = $0.1828333
Unit cost of 90 packets :
$18.95 / 90 = $0.2105555
The 60 packets has the least cost per unit, hence it is the best buy.
yes they form a proportion
you need to include what equation is given
y=x-3
65777792
if you do 8222224x24 it equals 197333376 and if you do that divided by 3 it equals 65777792
