Pleass ! will give brainliest and worth 50 points! four workers each earn the same hourly rate and were paid a total of $45 for doing yard work. part a express one worker's pay as a rational number in simplest form. part b express the rational number in part a as the product of a rational number and a whole number. part c covert the rational number in part a to a decimal using long division. show or explain your work. part d if the four workers completed the yard work in 20 minutes, what is the hourly rate for each worker? show or explain your work.