Please find the answer! will give brainliest

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

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)