Si una persona esta nadando a 2.5 metros bajo el nivel del agua como se expresa esa altura?

Find the total area for the regular pyramid ( follow the answer set up in the picture)

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate. in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

Anyone know these questions? i need ,.