Nora ran 5 miles last week. She ran 7 miles this week.
During the same two weeks, Beth ran three times as many miles as Nora.

Part A
Which expression represents the number of miles that Beth ran in the two weeks?
A. (5 + 7) + 3
B. (5 + 7) × 3
C. (5 + 7) + 2
D. (5 + 7) × 2

Part B
How many miles did Beth run? Enter your answer in the box.
miles

Sorry for 2 parts but plz help