The unit rate of hours is 2 per day.
There are 7 days in a week. You studied for 14 hours total. 14/7 is 2. So, 2hr/day.
Answer:
D
Step-by-step explanation:
see the photo for explanation
270 centimeters squared
A = H x W / 2
A = 18 x 30
A = 270
