Inez wants to buy a skateboard but she does not know if she has enough money. The price of the skateboard is $80 and the sales tax is 7%. What will be the total cost of the skateboard?

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