Respuesta :
Answer:
99.5 minutes
Step-by-step explanation:
50=45 min
495=?
495×45÷50
Answer:445.5
Step-by-step= for every 50 square feet Tom installs it takes 45 minutes.
So for every one square feet it takes him 9 seconds. Then you multiply 0.9 by 495 because yom is spending 9 seconds on one square foot and he is planning to install 495 square feet.
