Find two decimals with a product between 1 and 2

Which of the following is not a subset of {1,2,3}?

If rt is greater than ba, which statement must be true ?

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?