Write and solve an equation to find the unknown side length X (in centimeters). Perimeter = 12 cm
2
3 cm
5 cm
An equation is
= 12
29
The unknown side length is
centimeters.

You’re ordering more thread for blue jeans co. you usually purchase from ted’s threads, which sells 12 thread spools for $27. you recently received a notice from wade's wares that says you can buy thread from them for $2.30 each for the first 2 dozen and $2 a spool thereafter. you need to order 5 dozen spools. what percentage can you save by going with wade’s wares?