3 yards 5 feet 6 inches × 7

What is it? I'm taking a test right now.
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Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

An equation where variables are used to represent known values—function notation true or false

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation