How can you use system of equations in real life?

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

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Nikolas calculated the volume of the prism. his work is shown below.