I see 4 variables in the paragraph. Volume, surface area, height, and width.
928 = 1820 + x
Subtract 1820 from both sides.
928 - 1820 = x
Simplify.
x = -892
~Hope I helped!~
B.complex/imaginary roots
60 miles because (20mph)((3hrs) = 60
Average speed for car a = 1280 / 16 = 80 mph
Car b travels at 80 - 0.5 = 79.5 mph.
Distance car b will travel in same time = 16*79.5 = 1272 miles.