The price of a book is thrice that of an exercise book. of a student spend #9600 on book and #8000 on exercise book, he has 56 items altogether: (a) what is the price of an exercise book?
(b) what is the difference between the price of a book and an exercise book?

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passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!