((-5)-(-7)-(-3))x(10)

50

Step-by-step explanation:

{ (-5)-(-7)-(-3) } x10

{ (-5) +7 +3 } x 10

(-5 +10) x 10

5 x 10 = 50

4th option is correct xy=-10

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the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.