You just add all of it. You can use a calculator.
$19.36 + $21.75 + $32.26 =
$41.11 + $32.26 =
$73.37
The answer is B. $73.37
Negative numbers would not make sense for the <span>values of the variables especially when the equation represents a real world problem which mostly is the case. Having a negative value for a real world problem is not favorable because there is no such thing as negative time or negative height.</span>
36 miles per hour if he ran 12 miles in 20 minuets and there are 60 minuets in an hour, then multiply the # by 3