to make sure that a given parallelogram is a rectangle, at least how many of
its angles must measure 90°?

it can be either all or none

Step-by-step explanation:

because if you have one it will be off set just trust me.

the statemwnt is the company makes small and large snow cone cups.

large=it holds more then the small

small=it holds less then the large

after simplifying it i got: -36.25 as my answer. hope that !