Question

what is the width of a rectangle with an area of 5.8in2 and a length of 10 inches

Answer 1

The area of a rectangle is the length times the width.

A = L*W

In terms of W, the formula becomes
L = A/W

Given A = 5.8 in2 and L = 10 in, therefore
L = 5.8/10 = 0.58 in