Hector paid $56 for 7 books. What is the unit rate in this situation?

She was paid $8 per hour

Step-by-step explanation:

To find out the cost per hour you need to divide the total amount, which is $56, by the time worked, which is 7 hours, and when you divide you get $8.

Molten lead bromide

Explanation:

PbBr 2(l), is an electrolyte. During electrolysis: Pb 2+ ions gain electrons at the cathode and become Pb atoms. Br - ions lose electrons at the anode and become Br atoms, which pair up to form Br 2 molecules.