5. which of the following represents the area of a rectangle whose length is 5x - 3 and whose width is x + 7? (1 point)
o
5x2 - 21
o 5x2 + 9x - 21
5x2 + 32x – 21
o. 5x2 – 32x - 21

the following is 5x^2 + 32x - 21

(5x - 3)(x + 7)

5x^2 + 35x - 3x - 21

5x^2 + 32x - 21

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

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