Answer:
5 nickles in a quator.
Step-by-step explanation:
154
63
-7 * -9 = 63
negative times negative is always positive:)
4
20×25 = 500
20 guest
25 dollars per guest
75s+200= 500
75s = 300
S = 4
They can afford to buy 4 cases of snacks and stay within their budget.