-1.6α + 2a^4 + 8.1a^3 In standard form

My options are
2a^4 + 8.1a + 1.6a

2a^4 - 1.6a + 8.1a^3

8.1a^3 + 2a^4 + 1.6a

Any help is appreciated greatly :)

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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stethere all not eveanp-by-step explanation:

they used 313 gallons of paint

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