10 + (-5) = 10 - 5 = 5
-11 + 20 = 20 + (-11) = 20 - 11 = 9
102 + (-1) = 102 - 1 = 101
-20 + 60 = 60 + (-20) = 60 - 20 = 40
4r+5=3r can also be written
4r=3r-5
1r=-5
The midpoint bisects PR, making it 2 equal halves.
1 ton = 2,000 pounds
3 tons = 6,000 pounds
$480/6,000 = 0.08
per pound is $0.08
2500-700 = 1800
1800/5 = 360
The annual depreciation of the camera is $360.
