30 60 90 triangle with hypotenuse of 10, whats the best estimate for the perimeter

What value of x is in the solution set of –5x – 15 > 10 + 20x?

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

Which of these tables represents a non-linear function?