Roberta works in a hospital lab as a medical technician. She works 40 hours per week and earns $700 per week. What is Roberta's hourly wage?
(feel free to answer all the questions in the photo)

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !

d is ur answer hopes this i dont really know how to explain it to u.

isn't it a pentagon? sense [3 (triangle) + 4 (rectangle)] - 2 (triangle and rectangle connected) = 5 (pentagon)