4. This is simple the answer would be C. 60 because if you divide 9 by 1.50 you would get 6, so then you would need to multiply 6 by the number of erasers which is 10. So, 6 times 10 is 60.
5. This answer would be A. 1700 because (17 x 4) is 68 and 68 times 25 is 1700.
Hoped this helped!