This problem is very similar to problem 3-85, where Jollie's mother kept a growth chart of her.
Look back at problem 3-85 part (a) to help you solve this problem.
Three years ago, Ellen was 4 feet tall. In the past three years, she has grown 14 inches.
That means she is now 5 feet, 2 inches tall, since 4 feet + 14 inches = 5 feet, 2 inches.
Use the above example to help solve the problem about Ryan.
It might be easiest to change all measurements to inches before adding them.
Just remember to change them back to feet at the end.