Six shapes are shown below. Some of these are regular polygons, some are irregular polygons and some are not polygons. In the table below, write the letter of each shape in the correct column.

Please help.

If the value of cos330°is√3/2 then find cos 165°.

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?

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?