What will be the answer of this question? ?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Acylinder with a base diameter of x units has a volume of jxcubic units which statements about the cylinder are true? check all that apply. the radius of the cylinder is 2 x units. the radius of the cylinder is 2x units. the area of the cylinder's base is 200 square units. the area of the cylinder's base is a square units. the height of the cylinder is 2x units. the height of the cylinder is 4x units. mark this and return save and exit next submit

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1