Ten years ago, a smoothie at kay's smoothies cost $1.25. today it costs $2.00. in order to attribute this price increase of smoothies at kay's to inflation, what else would need to be true?

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