How many 1K * 8 memory chips are required to make up a 4MBits memory space?

If you could answer the other two it would be extremely helpful. there's a disconnect right now and I can't figure out how it all works together. thanks for any help.

3. How many IK X 8 memory RX 8 memory chips are required to make up a 4 MBits memory space! 4. How much total memory in hytes will there be if this memory space is made up of 10 16K X 32 memory chips. 5. Draw how you would connect two IK X 8 chips to construct a larger IK X 16 chip. Show the arrangement of the address and data lines