**Answer:**

Its the symbol "pi" which is 3.14

**Answer:**

$8,046

**Step-by-step explanation:**

9% of 89,400 = 8046

That's how much he earned.

6 hundreds, 6 tens and 14 ones is **674.**

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Glad I could help, and good luck!

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**Answer:**

If a = 6, then a + a2 = 18.

**Step-by-step explanation:**

Plug in 6 for the a-variables to get this equation (6)+(6)2. You should multiply 6 and 2 first to get 12 because of PEMDAS, then you should add 6 to get your final answer which is 18.