Am I too late to answer this
Answer:
a) $2.75 b) $13.75
Step-by-step explanation:
since 8.25 is the total cost of 3 books, inorder to find the cost of 1 book, divide 8.25/3
that equals = $2.75
then we need to find the cost of 5 books, so multiply the cost of 1 book by 5
so 2.75*5 = $13.75
Because 35 is divisible by 7, but 23-21=2, so it becomes 25, which 7 is not a factor of. therefore, it is not divisible by 7.
Answer:
invalid conclusion
Step-by-step explanation:
I cant understand could you make it clearer
