I shouldn't have answered this, I read it wrong at first.... I don't really understand it so sorry..... I would say ask your teacher, but sorry for "stealing points" :(
So for the first one... Let's just use x for months and m for minutes.
(20m)+(.15m)
20 times the number of months plus .15 times the number of minutes
Same for the next one
(35x)+ (.10m)
35 times the number of months +.10 times the minutes.
Its hard to explain how to solve but I could just give you the answer: 4.4
Answer:
first and last options only
Step-by-step explanation:
C = dπ
= π
C=2(r) π
π =