Clothing combinations III

This task is about finding all possible combinations.
 
a)
Hone has 7 different shirts and 6 different ties. How many different combinations of shirts and ties can he wear?
 
__________
 
b)
Peri has 5 pairs of shorts and 8 tops. How many combinations of shorts and tops can he wear?
 
__________
 
c)
Navaeh has 5 shirts, 3 belts, and 2 pairs of sneakers. How many different combinations of shirts, belts, and sneakers can she wear?
 
__________