Answer:
3.
Step-by-step explanation:
4$ = 1 pack
(think: what times 4 is 12? 3! so we need to muliply both sides of the equal sign by 3, so we can turn the 4 into a 12. Remember, what you do to on side, you must do to the other. )
4$ = 1 pack
*3 *3
12$ = 3 packs
so your answer is 3.
each sister gets 21 dollars, so there are three sisters there fore 21*3 equals 63
You want to find integers between the values of -1 and 4.
This includes 1, 2, 3, and -1.