Help pls! answer all three questions for brainlist!! (15 points)

For the first one: this is the expression of how much she spendsFor the second one: This was the original amount he hadFor the third one:So rectangles have two pairs of equal sides, 2 rectangles of the same size means their perimeter is Change to inches She takes 3 mins per inch then Is how long she would take

There are 48 blue cards total