Question

III. Answer the following
21. Find the value of i) 2^9 2)3^5

22. Find the rational number between and

23. Subtract: -11ab + 6cd - 15bc from - 10bc + ab - 4cd

24. A batch of bottles was packed in 25 boxes with 12 bottles in each box.

If the same batch is packed using 20 bottles in each box, how many boxes would be filled?

25. Find (2xy + 5y)2 using algebraic identities.

26. Factorise: 15xy - 6x + 5y - 2​

Answer 1

Answer:

2^9 = 2*2*2*2*2*2*2*2*2

= 512

3^5 = 3*3*3*3*3

= 243

Answer 2

Step-by-step explanation:

I gave you two methods of question 22 . both are correct. question 24 answer is 41.6 boxes which is approximately 42 boxes.