Question

1> which expression represents "5 less than the product of 7 and x"?

is the answer this: 5-7x


2> can anyone give me an example of multiplicative inverse property?

Answer 1

Common sense tells me that the first one should read 7x-5. You have it reversed.

Your second question should be answered in here somewhere:
http://www.google.com/search?q=multiplicative+inverse+property&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA_en

A math tutor should be along soon to give you further ideas.

Answer 2

thanks..

Answer 3

Yours would be right if it read 5 less seven times x. But it does not say that. See Writeteachers comment.

For any number n, there exists a number 1/n such that n* 1/n=1

example: Find the multiplicative inverse of 7.93

7.93 ( MI)=1
MI=1/7.93= .126103405...