Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina's rate in miles per hour if there are 5,280 feet in a mile? Which girl bikes faster?

12.7 mi/h (Nina's rate), so Nina's bike is faster.

Step-by-step explanation:

1 h = 60 min = 3600 sec

63360 ft/3400 sec *3600 sec/1 h * 1mi/5280ft =12.7 mi/h (Nina's rate)

12.9mi/h >10mi/h, so Nina is faster.

the area of the rectangle is 35units^2.

step-by-step explanation:

graph it and find the distance.

it is a 5*7 rectangle.

therefore the area is 35units^2.