The graph shows the coordinate plane and lines from the previous screen. The lines intersect at ( 8.5, 3.5 ). Are there any number pairs that satisfy both constraints?

(1) The sum is 12.
(2) The difference is 5.

Rounding  means we are finding the closest  benchmark number. abenchmark number  is one that is easy to  use  in operations and/or quicker to say and write. a  number  line can us  round  by showing the closestbenchmark number. five is the midpoint  between  0 and 10.

9.8 - 4.5 = metersthe friend is swimming below the surface of the water so it's -5.8 meters.4.5—9.8= -5.3