All of the following are prohibited practices under FINRA rules EXCEPT: A selling enough mutual funds to a customer to obtain a breakpoint B backing away from a quote C interpositioning another firm between a customer and market maker D withholding new issues from sale to the public

The correct answer is letter "A": selling enough mutual funds to a customer to obtain a breakpoint.

Explanation:

The Financial Industry Regulatory Authority (FINRA) is a non-governmental institution that rules brokers and dealers activities in the United States. FINRA aims to protect private investments from bad practices and fraud having the authority to impose penalties whenever necessary.

Brokers can send different assets -such a mutual funds or stocks- on behalf of investors to come to a breakpoint and start generating profits from the trade.

x=3

step-by-step explanation:

this is really simple i saw that there was only one term (5x) and thought if that was 15 what would i have to multiply everything else to get it there? well if 5x became 15 then x would have to be 3 so plug the 3 in the x for the other equations and you get 15 for the other ones. so there you go. : )