Answer: 2
Step-by-step explanation:

You know that
5² = 25
6² = 36
so √28.8 must lie between √25 = 5 and √36 = 6.
Answer:
the answer is c = (ad)/b
Step-by-step explanation:
See the picture
Not sure is this is right but if the chemist wants to make the solution 35% acidic then he can use all of the 30% acid and 5% of the 45% acid.