Lettuce is packaged fo four bags a box there are 3.5 boxes of lettuce in cooler how many bags of lettuce are there

Tangent ? ) × cos /2 +? ) > 0. the answer is that cos ? < 0. i forgot to put the minus before. i get confusermd when i see questions similar to this when the radian is negative such as /2 i cant seem to solve it