1. a rectangle has a length 2 ft less than three times its width. what is the area of the rectangle when its width is 2 ft?

a. 8 square ft
b. 6 square ft
c. 12 square ft
d.10 square ft

2. from an elevation of 3.5 m below the surface of the water, a northern bottle nose whale dives at a rate of 1.8 m/s. what is the whale's depth after 4 min?

a.-435.5 m
b.-212.5 m
c.-10.7 m
d.-170.2 m

Part 1)

Let

x-------> the length of the rectangle

y-------> the width of the rectangle

we know that

the area of the rectangle is equal to

------> equation A

when

substitute the value of y in the equation A

Find the area

therefore

the answer  Part 1) is the option A

Part 2)  

we know that

the rate of dives is

The linear equation is

where

x------> is the time in seconds

y-----> is the depth in meters

For

convert to seconds

substitute in the linear equation

therefore

the answer part 2) is the option A

$649.60

step-by-step explanation: