Answer:
13
Step-by-step explanation:
there is a rule that says that if you add any 2 sides, it should be more than the third. 9+21 is greater than 13. 21+13 is greater than 9. 13 is the only number which if you add 9 to it it will be greater than 21. 12 will equal 21, but it still wont work.
hope this helps :))
9$ for three cans then 9/3= 3 $ per can
Answer:
30
Step-by-step explanation:
Because of the following statement is not true no.of atoms
Try describing the amount of numbers in the square u know like "shade covers 2/4 of the square''