T= total cost
m= magazine
p= paperback books
To determine the total, (multiply the price of a magazine by the number of magazines) PLUS (the price per book multiplied by the number of books).
To Solve (just so you know how):
T= $3m + $5p
T= 3(1) + 5(4)
T= 3 + 20
T= $23 total spent
A term is part of the equation separated by an addition or subtraction sign
-3m is a term (3 in given expression)
-20 is a term (4x5 is one term)
-T is a term
Hope this helps! :)