Answer:
64
Step-by-step explanation:
i calculated using https://www.calculator.net/triangle-calculator.html :/
9 mph because if it was 4/5 miles in 1/10 of an hour you just multiply it by 10 to get an hour and if you multiply 4/5 x 10 equals 40/5. simplified it is 9
C) One third of the day is 8 hours. Sandra sleeps for 8 hours.
D) One eighth of the day is 3 hours. Sandra visits her family and friends for 3 hours.
He would buy 5 because 5 cd's cost 50 dollars and the shipping and handling is an extra 4$