Mathematics Homework Help

Mathematics Homework Help. Math help needed: how many investors use only discount brokers?

In a poll conducted among 180  active investors, it was found that 100 use discount brokers, 122 use full-service brokers, and 54 use both discount and full-service brokers. How many investors use only discount brokers?

A.
B.
C.
D.
E.

Mathematics Homework Help

 
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