**Answer:**

<em>y = - cos ( </em><em> x + </em><em> ) </em>

**Step-by-step explanation:**

y = A cos ( Bx + C) + D

Vertical shift D = 0

A = - 1

Compression / Stretching B

Period of given function is

Period of cos x is 2π

= ⇒ B =

Horizontal shift is C ÷ B

Horizontal shift of given function is

= C ÷ ⇒ C =

So, the equation of given function is

**<em>y = - cos ( </em>****<em> x + </em>****<em> ) </em>**

**Answer:**

$29.75(without tax) (I don't know if you need it with tax)

**Step-by-step explanation:**

Find 10% of $19,200 = 1,920

Find 2% of $1,920 = 384

12% = $2,304

19,200 - 2,304 = 16,896 (year 1)

Repeat this until you have your 5th year :)

**Answer:**

If you subtract $44, 090 from $68, 450 you'll get $24, 360, so thats how much more she'll earn with a bachelor's degree.

**Step-by-step explanation:**