Item 16 The area of the Florida Keys National Marine Sanctuary is about 9.6×103 square kilometers. The area of the Florida Reef Tract is about 16.2% of the area of the sanctuary. What is the area of the Florida Reef Tract in square kilometers? Write your answer in standard form.

Step-by-step explanation:

We are given the following in the question:

Area of National Marine Sanctuary =

Area of Florida Reef Tract =

To calculate the area of Florida Reef Tract =

Thus, the area of Florida Reef Tract is

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -