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.

Answer:
No, I believe the solution is (2/3, 11/3)
Step-by-step explanation:
Answer:
10.02
Step-by-step explanation:
Answer:
x=-11
Step-by-step explanation:
5x+2=4x-9
5x-4x=-9-2
x=-11