Acar travels at a speed of s miles per hour. it covers 126 miles in 3 hours.
the equation that can be used to find the value of s is

s=(126*1.6*1000)/(3*60*60)

=(12600*1.6)/(3*3600)

=20160/10800

=2m/s

2nd one in the first row is correct

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.