Answer:
Step-by-step explanation:
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Answer:
D. 5y^2 - 4y - 1
Step-by-step explanation:
Combine like terms:
(y^2 -y +1) +(4y^2 -3y -2)
= y^2(1 +4) +y(-1-3) +(1 -2)
= 5y^2 -4y -1
Let the length be 3x so the width is x
2x+6x=22
8x=22
x=2.75
3x=8.25
8.25 by 2.75
40 choices for 1st slot
39 for 2nd (1 less)
38 for 3rd
40*39*38=59280 ways