Question

Zoe had x dollars on Monday. 

Her sister took $4.50 from Zoe on Tuesday.

Zoe's mother gave her $20 on Wednesday.

Zoe spent half of her money on Thursday.

She had $17.80 left in her pocket.

how much did Zoe have on Monday​

Answer 1

13.00 I think I don’t know if that correct but that’s what I got

Answer 2

It’s $25.55 as if she took 4.50 from 20 it makes 15.50 and half of that it’s 7.75 plus $17.80 is $25.50