D is the correct answer
v = y
good luck
Find to LCM of 8 and 18 to compare times
Mary: 4*9laps/8*9min
36 laps/ 72 mins
Nicole: 12*4laps/18*4 mins
48 laps/ 72 mins
Nicole runs more laps in the same amount of time as Mary
Therefore, Nicole runs faster
42×80 divided by 100
34 number of answers are correct.
This is a true statement.