Answer plz I need help

Hello!

This question simply asks:

20% of what number would equal 35?

To calculate that, use the following formula:

(35 × 100) ÷ 20 = 175

So, we know that Veronica had $175 to spend in total. Then she gave $35 to Bill. Sutract:

175 - 35 = 140

Now, the question says she used 50% of the remaining money to buy books.

Multiply the remaining amount of money by the percentage she spent on books.

140 × 50% = 70

Veronica spent $70 on books.

140 - 70 = 70

Veronica has $70 left.