a 16 oz package of brown rice cost 79 cents and 32 oz package of white rice cost 3.49. which package is a better deal and why?

Ineed to know the answer right now! !

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.