Question

Tommy has 3 helmets and 5 football jerseys. How many different ways can he wear a helmet and a jersey?

5
10
8
15

Answer 1

multiply them
3*5=15
15 ways
don't believe me?
make a plot
capitals letters are helmets and small is jerseys
A,B,C and
a,b,c,d,e

Aa
Ab
Ac
Ad
Ae
Ba
Bb
Bc
Bd
Be
Ca
Cb
Cc
Cd
Ce


answer is 15