john borrowed 5$ from his friend he wants to pay him back plus give him extra 1$ for lending him the money how much money does he need?​

Can some one me with this math problem?

For what value of (y) is 3^3/3^y =1/9

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