**Answer:**

0.0015 or 0.15%

**Step-by-step explanation:**

Data

- mean age of sea turtles, μ: 80 years

- standard deviation, σ: 17.3 years

Z score is defined as:

Z = (x - μ)/σ

To find the probability of finding a sea turtle that is over the age of 131.9 years, we have to replace x = 131.9, to get:

Z = (131.9 - 80)/17.3 = 3

The 68 - 95 - 99.7 rules stands that (see figure attached):

P(Z > 3) = 0.0015

To graph a linear equation:

1. Find the x-intercept

The x-intercedpt is the point when the line cross the x-axis (when y=0)

First point (-1 ,0)

2. Find the y-intercept

The y-intercept is the point when the line cross the y-axis (when x=0)

Second point (0 , -3)

3. Put in the plane the x and y-intercepts and draw a line that pass through these points:

Besides the x- and y-intercepts you can identify point (-2,3)

**Answer:**

$18

**Step-by-step explanation:**

6/10 × $30 = $18

______

**Answer:**

108.72

**Step-by-step explanation:**

72 x 1.51 = 108.72

**Answer:**

f(-7)=21

**Step-by-step explanation:**