What is the cirumference of a circle with a diameter of 4.1 cm

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?

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?

24m^2n+30mn^2+18mn, a sweet challenge!