15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

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