hanaa

(6/9-a^2)-(3/12+4a)

.25x+.4(60-x)=60(.3)

Solution A is 25% acid and Solution B is 40% acid. How much of each is needed to make 60 liters of a solution that is 30% acid?

I have 128Mb,256MB,512MB,1GBmemory modules.which of these combinationsis the least expensive to upgrade my computer from 2GBto 8GB

assume you have a computer that contains 2 GB memory . It contains four memory slots . Each slot can contain 128 MB,256 Mb,512 MB,1 GB or 2 GB memory modules. currently ,each slot contains a 512 MB memory module . Determine which of these combinations is...

competitive advantage and human resource

1- Is it ethical to admit more students in the university dorm that it couldn't house them comfortably ?

I need an essay about human resource as competitive advantage . I gathered so many data but i need your help too . Thanks