Ayuda con los ejercicios por fa es para hoy

Hey am have account in but wished to create an account here you guys will me with my make new friends of uk !

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

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