Combine the radicals 5√27- 17√3

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0