Arectangular flower garden in samantha back yard has 100ft around it's edge. the width of the garden is 20 feet. what is the lengt of the garden? use the numbers such as 10

30 ft.

20+20=40 These are the short sides of the flower garden. If the total is 100 ft, you need to subtract 40 ft.

100-40=60.  This is the total of the other two sides of the rectangle. Hope this helps.

The answer would be option 4