The solution to the problem is as follows:
<span>⇒d2−9d−5d+45</span>
<span>
⇒d(d−9)−5(d−9)</span>
<span>
⇒(d−5)(d−9)
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Answer: Yes!
Step-by-step explanation:
Yes, graphite is composed of 100%carbon. With this, can we say that graphite is an element or compound of carbon? Compound is composed of two or more elements combined in a substance in definite proportions, in the form of molecules held together by chemical bonds.

and then there's a line with 2y right under that expression
Answer:
x=4.5
y=-2.5
Step-by-step explanation:
Multiply 2x-4y=19 by 3
Multiply 3x+5y=1 by 2
Solve simultaneously