What is the first step to prove that Sn1 + 5 + 9 + ... + (4n - 3) = n(2n - 1)? a.
Verify that Sn is valid for n = 1. A is the Answer
c.
Assume that Sn is valid for n = k
b.
Show that Sn is valid for n = k
d.
Prove that Sn is valid for n = k + 1

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

Use the expression below.–4b + 8c + 12 – 8b – 2c + 6part asimplify the expression. enter your answers in the boxes. b + c + part bfactor the simplified expression using the gcf. a. 2(–2b + c + 3) b. 3(–2b + c + 3) c. 4(–2b + c + 3) d. 6(–2b + c + 3)part cwhat is the value of the expression when b = 2 and c = –3? enter your answer in the box.

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