Answer: 28
the cost of 7 diaries is 28
Step-by-step explanation:
First you have to find out the cost of one diary by dividing 12 by 3, that will give us 4, and then the last step is multiplying 4 by 7.
Answer: 90 and 110
Step-by-step explanation:
Answer:
3.75 i think c:
Step-by-step explanation: