Detroit windsor tunnel is an underwater highway that connects the cities in detroit michigan in windsor ontario. how many times deeper is the roadway than the bottom of the ship?

5 times

Step-by-step explanation:

The complete question in the attached figure

we know that

The deep of the bottom of the ship is -15 ft

The deep of the roadway is -75 ft

To find out how many times deeper is  the roadway than the bottom of the ship, divide the deep of the roadway by the deep of the bottom of the ship

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.