Help please thank you

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

What is the least common factor of 6 and 8

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x