HELP ME PLZ !! First one who answer these right gets brainliest !

3. z = 0

I could only find the answer for number 3. I'm sorry! I hope this helps anyway!

Hi there!

First we need to calculate how much the 3 T-shirts cost and subtract that from the amount she paid to find the change.

First, we multiply to find the coats of the T-shirts.

3 × 8 = 24

Now, we subtract 24 from 50.

50 - 24 = 26

So, she got $26 of change.

Hope this helps!