Can someone explain this to me?

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

Jalen charges $25.50 for every 3 hours of yard work he does for his neighbors. ralph charges $34 for every 4 hours of work that he does. who charges less? opinions: 1.they charge the same amount 2.jalen 3.ralph