Fraction of black pens = 2/ (2 + 5) = 2/7 answer
Assignment: 
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Answer: 
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Explanation: 
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[ Step One ] Switch Sides

[ Step Two ] Expand 

[ Step Three ] Rewrite Equation

[ Step Four ] Add 8 To Both Sides

[ Step Five ] Simplify

[ Step Six ] Divide Both Sides By -1

[ Step Seven ] Simplify

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Steve will have to buy "6.25" bags of apples if he wants to give one apple to each student.
Explanation:
75 divided by 12 = 6.25
Answer:
37.4
Step-by-step explanation:
a = 4 and b = 8
change the equation
5.4 + (4) (8)
use P.E.M.D.A.S. and multiply
4*8 = 32
add
5.4 + 32 = 37.4
I would assume you would do base*width*weight to get your area.