What is 2 (-4) ^2? i'm a bit confused

The next number in the series 3, 4, 6, 7, 9, 10 is:

A pyramid with a rectangular base has a volume of 480 cubic inches and a height of 10 inches. The width of the rectangular base is 9 inches. Find the length of the rectangular base.

a sayian's power level is 400 septillion if he goes super sayian 3 and it multiplies his power by 900 trillion what is his power level in super sayian 3

What is the height of an equilateral triangle with sides taht are 12 cm long? round to the nearest tenth?

Given an 8 foot length of tree trunk with a radius of 3 feet, what is the volume of the tree trunk section? (to the nearest whole ft3)

Is 9/10ths bigger or smaller than 5/6th

How many ways can you choose 3 of of 7

How much time it would take for the sound of thunder to ravel 2000 meters if sound travels a speed of 330 meters per sec

What is 77/8 in simplest form

Solve 2/5 (x - 1/2) = 0.25 (x + 8)