Hello!You have to multiply 1 1/4 by 30 because each math book is 1 1/4 in. thick, and 30 books is 1 1/4 by 30. First change 30 and 1 1/4 to an improper fraction.

1:5 or 2:10 because if you divide 10 by 2 you get 5 and 2 divided by 2 it is 1
Answer:
I think the answer is $246.00
Step-by-step explanation:
Answer:
assim claro
Step-by-step explanation: