Laptop computers are measured according to the diagonals of their screens. An 18-inch laptop has a screen that is 9 inches tall. Round all answers to

Laptop computers are measured according to the diagonals of their screens. An 18-inch
laptop has a screen that is 9 inches tall. Round all answers to the nearest hundredth.
a. How wide is the screen?
b. What is the area of the screen?

A cable is installed around two edges of a rectangular field that is 285 feet long and 360
feet wide, from point A to B and then from point B to C. Suppose the cable costs $2600
per foot to install. Round all answers to the nearest hundredth.
a. How much did it cost to run the cable along the two edges of the field?
b. How much would it have cost to run the cable along the diagonal, from A to C?
c. How much money would have been saved if the cable were installed along the
diagonal of the field instead of around the edges of the field?