What is the solution to this system of equations? {2x+4y=227x+y=12{2x+4y=227x+y=12?

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Can someone me with the property questions for 12 13 and 14 plz