Answer:
Part 15) Asia is
times greater than Africa
Part 16)

Part 17)

Explanation:
Part 15)
Let
x------> Asia's area
y-----> Africa's area
we have


Divide x by y

therefore
Asia is
times greater than Africa
Part 16)
Let
x----> amount of money remained in the account
we know that

Part 17)
step 1
Find the area of the hallway

step 2
To find the cost multiply the total area by

so
