Find the algebric expression of:  Subtraction z from y

Classify: 7mn  into Monomial, Binomial, Trinomial or None of These

If y represents any number,write expressions for:

5 times a number

4 is subtracted from twice a number and the result is 20.

In each of the following,the letter N has been used to represent a number . for each expression written in words.

The sum of the number and 52

Classify: x + y - xy into Monomial, Binomial, Trinomial or None of These

Which of the following is not a trinomial expression.

can be classified as ____________________ .

From the given options, choose trinomials.

Identify the binomial expressions from the following ?