3. Select all the expressions that represent the number of squares in Step n. Step 1

Step 2

Step 3

a. f(n) = 8 + 3(n-1) for n 2 1

b. f(n) = 3 + 8(n-1) for n 2 1

c. f(1) = 8, f(n) = 3 + f(n-1) for n 2 2

d. f(1) = -8,f(n) = 3 + f(n-1) for n 2 2

e. f(n) = 3 + 8n for n 2 1

f. e. f(n) = 3n+ 5 for n 2 1