Which is an equivalent form of the expression (2x- 5)(2x- 5)?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?