Use your calculator to evaluate - 3.7 meter/second-13.9 meter/second 21.4 second-72 second

(-3.7 meter/second) - (13.9 meter/second) = - 17.6 meter/second

(21.4 second) - (72 second) = - 50.6 second

Explanation:

(1) As we are given the expression:

(-3.7 meter/second) - (13.9 meter/second)

Now we have to evaluate this expression, we get:

⇒ - 17.6 meter/second

(2) As we are given the expression:

(21.4 second) - (72 second)

Now we have to evaluate this expression, we get:

⇒ - 50.6 second