Answer:
35
Step-by-step explanation:
Given that a fast food restaurant has the following options for toppings on their hamburgers: mustard, ketchup, mayo, onions, pickles, lettuce, and tomato.
A customer can choose from these 7 options 4 different options in 7C4 ways
This is because order does not matter here
So we use combinations here
Total no of ways a customer choose four different toppings from these
options=7C4
=35
Answer is 35
Answer:

Step-by-step explanation:




Answer:
multiply the whole equation by -1
Step-by-step explanation:
it would look like
-1(–ab + bc + ca)
negatives multiplied make a positive and a negative and positive multiplied makes a negative so the end result is
ab – bc - ca
The answer is the 3 option