How did they get m=29?

That is not the specified answer

They Actually mentioned the value of 'm'

and in the second sentence of the question they substituted the value of 'm' that is 29 ( whích ís αlrєαdч gívєn ín thє quєstíσn )

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

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.