It would be 4 (2)=a hope this helps not very good this
Answer:
25.6
Step-by-step explanation:
To work this out you would first divide 65 by 10, which gives you 6.5. This is because by dividing it by 10 you are working out 10%. Then to work out 40% you would multiply 10% which is 6.5 by 4, which gives you 25.6.
1) Divide 65 by 10.

2) Multiply 6.5 by 4.

Area is defined as a product of sides when we talk about squares.

The area of the front cover of notebook is 400 centimetres squared.
Hope this helps.
r3t40
Answer:
The two spheres that interact in the formation of tsunamis are the geosphere and hydrosphere.
Step-by-step explanation:
Sometimes in the Earth, plates may move. Earthquakes may happen, and when it occurs under the ocean, it causes huge waves (tsunamis) that carry a lot of energy through a movement.