Please Help quick and get the correct answer I will give brainiest for whoever correct! Thanks

B

Step-by-step explanation:

This is a question on absolute value. Any number negative is equal to its positive counterpart and any positive number is positive. :)

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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answer:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21  

-7 + ? = 21

-7 + 28 = 21

hope it