Akash needs to put plastic trim on a shaped window. The window is made using a rectangle and a semi-circle.
The diagram shows the places where he needs to put the plastic trim.

Akash estimates that he will need 700 cm of plastic trim in total.
Use estimation to check if Akash's estimate is sensible.
You must show your working.

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.