Answer:
25 = 141 + 159/2
Step-by-step explanation:
Answer:
287 books
Step-by-step explanation
there was already 239 books. when the problem mentoins that Mary ADDS MORE books to the shelf, the operation is addition.
239+48=287
Multiply the speed of the train by how many hours it travels:
22.5 miles per hour x 2.5 hours = 56.25 mile.
The train is 60 miles from it's destination, so now you want to subtract the miles it will travel in 2.5 hours from the total distance:
60 miles - 56.25 miles = 3.75 miles away from its destination.
Answer: 769.3
Step-by-step explanation:

C=2*3.14*122.5
245/2=122.5
C=769.3
Answer:
Step-by-step explanation:
the directrix is y=-1
I don't know what the vertex focus is.