How would you convert 600 kilograms into grams

Select a graph that have an equation with a < 0

What is the number 321,000,000 in scientific notation? also what is the number? ?

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle. he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field