Given:
The expression is:

To find:
The terms and like terms in the expression.
Solution:
Terms: Variables, constants and product of variable and constants are known as terms which are separated by addition sign "+".
Like terms: The terms which contain same variables with same power are known as like terms.
The given expression is:

It can be rewritten as:

Terms are
.
Like terms are
and
and
.
Answer:
a(1)= -3
a(n)=a(n-1) (-3)
Step-by-step explanation:
hope this helps
Answer:
n x p = c
Step-by-step explanation:
n is the amount of pens so we time it by the cost of 1 pen which is p and the final answer is c as the cost of all the pen.