Which expression can be used to find 52% of 230?

A. 230/ 0.52
B. 0.52 • 230
C. 52 • 230 • 100
D. 230/52

Can any one me with the answers to these questions asap?

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field