Plz answer this its some math homework

Tina practice piano for 15 hours last month and 45 hours this month use multiplication to write a statement comparing me i was tina practice during the two months use addition to write a statement comparing the hours tina practice during the two months

Which of the greatest common gcf of 32 and 48 a 16 b 96 c 8 d 32

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane