I need help with 7 and 9. It is almost due!!

1 answer:

6 0

The answer to question seven and question nine is

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ki77a [65]

Answer: 10n^2 - 10

Step-by-step explanation:

(5n - 5)(2+2n) becomes (5n-5)(2n+2)

= (5n)(2n) + (5n)(2) + (-5)(2n) + (-5)(2)

= 10n^2 - 10

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3 years ago

finlep [7]

Answer:

okayyyyyyyyyyyyy

Step-by-step explanation:

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3 years ago

Tamiku [17]

Answer: 11/30

Step-by-step explanation:

11 girls out of 30 kids. 11/30 cannot be simplified.

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3 years ago

Art [367]

Idk how big is 16% is 16% like 20

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3 years ago

aleksley [76]

The answer would be -0.5.

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3 years ago