The pattern of squares below continues indefinitely. More squares are added with each step, n. Which expression below can be used to determine the number of squares in the nth step?

A. 2 n - 1

B. 3 n

C. n 2 - n + 1

D. n2

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step-by-step explanation:

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4y < -4

we need to isolate y. we can do this by simply dividing both sides by 4.

4y ÷ 4 > -4 ÷ 4

simplify.

y > -1

5 - y > 0

once again, we need to isolate y, so we can start off by subtracting 5 from both sides.

5 - y - 5 > 0 - 5

simplify.

-y > -5

divide both sides by -1.

** remember that when dividing any side by a negative, you must switch the sign! **

-y ÷ -1 < -5 ÷ -1

simplify.

y < 5

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