Please check screen shot for 10 points

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

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.