Morgan is 23 years old. Her grandfather is 4 times as old. How old is her grandfather?
A 23 + 4 = 27 years old.
B 23 -4 = 19 years old.
C 23 years old.
D 23 x 4 = 92 years old.
An elephant drinks 49 gallons of water per day. A rhinoceros drinks 21 gallons of water per day. What is the total amount of water the animals will drink in 8 days?