Which of the following is not a ratio?
a. 4 feet/9 feet
b. 12 miles/8 gallons
c. 12 miles/20 miles
d. 4 gallons/9 gallons

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

What is the answer to question 11? will give extra points! include a explanation (reasonable) for you : )