2 years ago

HELP THIS IS A BIG TEST WILL GIVE BRAINLIEST

1 answer:

6 0

Answer:

c. -7

Step-by-step explanation:

-4x^2+8x+10-3x^2+3x+3

-7x^2+11x+13

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Step-by-step explanation:

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≈ 14.3 hours

Step-by-step explanation:

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