7th grade math
posted by Aaron on .
Is "quantity of" same as a multiplication problem?

Not necessarily.
What is your problem? 
Needing to write an algebraic expression, 14 less than the quantity k times 6
Then another one, I don't understand the books answer, 35 multiplied by the quantity r less 45 
6k  14
35r  45 
35 multiplied by the quantity r less 45

6k14

260