` simply sin(y)/(cos(y)+1)+sin(y)/(cos(y)-1) = -2/(tan(y))`

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Darian wants to build a regulation size pool table that is 9 feet in length. he plans he ordered are 18 by 36 inches. what is the scale factor of the dilation he must use to build a regulation pool table

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?