The answer it negative 450

**Answer:**

C

**Step-by-step explanation:**

( 18 x 2) + (18 x 3) = 36 + 54

**Answer:**

After 12 years the investment will be worth **$5145.**

**Step-by-step explanation:**

The formula used for compounded interest is:

**A = P(1+r/n)^nt**

**where,**

A = future value

P = Principal Amount

r = interest rate

n = no of times interest is compounded

t = time

In the question given:

A=?

P = $2100

r = 7.75% or 0.0775

n = 1

t= 12

A= 2100*(1+0.0775/1)^1*12

A= 2100 *(1+0.0775)^12

A= 2100 *(1.0775)^12

A= 2100 * 2.45

**A= 5145**

So, after 12 years the investment will be worth **$5145.**

**Answer:**

yes

**Step-by-step explanation:**

9 can be represented as 9/1, which is the reciprocal of 1/9.

**Answer:**

**Step-by-step explanation:**

Given:

The quadratic function is given as:

The standard form of a quadratic function is given as:

, where, 'a', 'h' and 'k' are real numbers.

Now, in order to convert the given function to standard form, we use **completing by square method.**

Now,** can be rewritten as:**

Therefore, **the standard form of the function is:**