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I need help solving number 5!! Just work and then final answer needed, thank you!

I need help solving number 5!! Just work and then final answer needed, thank you!-example-1
User Xzilla
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Replace x with 60 and evaluate.

25x - 0.2x^2
25(60)-0.2(60)^2
25(60)-0.2(3600)
1500-720
780

The final answer is 780

User Jesmy
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