Which sentence shows that Maddie had confidence in her idea for Snap Caps?
She convinced her uncle to give her 50 bottle caps.
She displayed her creations on the inside of her locker.
She used $300 of her own money to produce her invention.
She asked her friends to wear her designs to school.
The sentence that shows Maddie had confidence in her idea for Snap Caps is: “She used $300 of her own money to produce her invention.”
Explanation: This statement indicates that Maddie believed strongly in her idea’s potential and was willing to invest her own money, which reflects a high level of confidence in her invention.