Please help me with the equation

6+z/10= -2

Matteo makes raspberry punch. the table shows how many parts ginger ale and raspberry juice to use for a batch. raspberry punch parts ginger ale 2 parts raspberry juice 3 matteo decides to add one part of raspberry juice. what is the new ratio of ginger ale to raspberry juice?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account