How much pure aple syrup should be added to 48 tablespoons of a 45% solution to make a 60% solution

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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?

Which of the following is the sum of 3 1/6 + 6 3/8?