8 Given the summation Σ (3
+
2n),
n=1
a. Write the first four terms of the sequence.

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Which of the following graphs could represent a cubic function?

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122