Math: 4th grade
posted by Amber .
I have problems with expressions..
Susan had 24 stamps. She used some to mail letters..
What expression could I write for that?
Also..
Nancy had 23 books. Her dad bought some books and gave Nancy all but 3 of them.

1) what about
24n where n is the number mailed.
2)
23+(b3) where b is the number of books dad bought. 
MR SPIDER HAS 7 TIMS AS MANY FLIES AS HE DOES BEETLES. ALTOGETHER HE HAS 48. HOW MANY FLIES AND HOE MANY BEETLES DOES MR SPIDER HAVE?

thank you so much

1) 23x
2)23(x3)