Help please! will mark brainliest if correct

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

Find dy/dx using implicit differentiation ln(20+e^xy)=y

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons