D is written scientific notation because 7.8 is higher than 1 and less than 10. Hope that helps ; )
The shelf can hold: 15 x 5 = 75 books
Two thirds of the shelf: 75(2/3)= 50 books
Dividing by a fraction is the same as multiplying by a fraction so it's really
9 x 3 = 27
hope that helped (:
Answer: B 0.3350
Step-by-step explanation: I took the quiz