A
900 a piece
negative 12.50 because it's a loss of money
Answer:
6:55 A. M. is the latest time he can leave his house
Elga's age is 50, and Alvin's age is 56. So, the sum of their ages is 106.
To start to figure this problem out, we can first figure out how many more pages you read in an hour compared to your sister.
50 - 40 = 10, so you read 10 more pages in 1 hour.
Now we have to figure out how much more you would read in 1/2 an hour. Since 1/2 an hour is 1/2 of an hour, we can divide 10 by 2 to figure out how many more pages you read in an hour compared to your sister. 10 divided by 2 is 5, so you read 5 more pages every half hour.