What is -2.3+4.2-3.4 step by step?

-1.5

Step-by-step explanation:

Simplify (Add -2.3 with -3.4) and get -5.7

[Add those using the assosiative property of addition]

Add 4.2 to the number and get -1.5. [it is a negative number because 5.7 is bigger than 4.2]

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce