There are two of them:
1). (n * a) means n + n + n + n + n + n + n + . . . 'a' times.
2). (n * a) also means a + a + a + a + a + a + a + a + . . . 'n' times.
You divide $9.20 into $395.60 and get 43 hours.
D is the most reasonable as the other 3 answers are improbable.
Answer:
C.
Step-by-step explanation:
the subset consists of all the sandwiches with turkey and american cheese