What is the difference in the 4 in the first expression and the second?
3x-4 2+4x

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

Is the square root of 4 plus the square root of 16 rational?

Bring the fraction a/a-4 to a denominator of 16-a^2