Help plzz thanxs.

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

Which statement best explains why ben uses the width hi to create the arc at j from point k

Taylor wants to paint his rectangular deck that is 41 feet long and 24 feet wide. a gallon of paint covers about 350 square feet. how many gallons of paint will taylor need to cover the entire deck? round your answers to two decimal places when necessary.