That’s the formula used to find the parallelogram.
Surface area of one face = 9x9 = 81
total no. of faces = 6
total surface area of prism = 81 x 6 = 486in.
Answer:
flip it around 9/13 reciprocal would be 13/9
Their is not a lot of information but I think it is 12*24=288
Let C equal bags of cookies
Let M equal money earned
2.75c=m
Probably not enough sorry if it isn't