An 18-ounce box of cereal costs $4.14. a 36-ounce box of the same cereal costs $5.40. find the unit price for each size. show your work

The unit rate or price for an 18-ounce box that costs $4.14 is, a 1-ounce box costs $0.23. ($4.14/18 = x/1; 18/1=18; $4.14/18=$0.23)
The unit rate or price of a 36-ounce box that costs $5.40 is, a 1-ounce box costs $0.15. ($5.40/36 = x/1; 36/1=36; $5.40/36=$0.15) 
I hope this helps you. If you have other questions let me know. 
-SweetSmart04

Hello sorry can’t good luck tho