please help it's due today, And please if you don't know the answers don't put any links or apps. And if you do know the answer plz help me. I'll mark as brainliest

In a box lenght 1m breadth 60 cm and height 40 cm small rectangular packets of dimension 5 cm into 8 cm into 10 cm are packed. how many such small packets can be packed in the big box?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?