Answer:
c
Step-by-step explanation:
A
x X x
= x^2
B
20 x 20 = 40
C
100 / 40 = 2.5 per square inch
Answer:

Step-by-step explanation:

We want to isolate the x.


Now, we want the x not to have a coefficient. We want it just to be x =. We will do this via inverse operations. Since 3 x is 3 multiplied by x, we will divide each side by 3.


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Answer:
(a^2+ax-y) (a^2+ax+y^2)
Step-by-step explanation:
a^4+2xa³+a²x²-y^4
(a^2+ax)^2-y^4
(a^2+ax-y) (a^2+ax+y^2)