Nina asked 30 of her friends what they thought about a new movie.

is this a random sample of the students in the school?
yes
no
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Brent wants to know what is 5 x 1/2

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

How many ordered pairs of positive integers satisfy xy=32?