5/x = 10/20
What is 10
Which is a better buy: 2 pizzas for $12.99 or 5 pizzas for $28.99?
What is 5 pizzas for $28.99
x/12 = 5/10
What is 6
15/x = 40/20
What is 7.5
3.5/12 = x/15
What is 4.375
30/x=7.5/12
What is 48
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