The graph represents the speed at which Pete’s marble travels. The speed of Stephano’s marble is represented by the equation f = 2.25s, where f is the distance in feet and s is the time in seconds.
Whose marble will reach the 6-foot mark sooner?

Step-by-step explanation:

Given the speed of Stephano’s marble is represented by the equation

f = 2.25s, where f is the distance in feet and s is the time in seconds.

To get the marble that will reach the 6-foot mark sooner, we will substitute the value of f = 6 and calculate the value of s as shown:

f = 2.25s

6 = 2.25s

s = 6/2.25

s = 2.67secs

Hence the 6 foot marble will reach after 2.67secs

452,489 to the nearest thousand is 452,000

1/4 because there is 4 grades.