Find the area of the triangle bounded by the y-axis, the line f(x)=10-2x, and the line perpendicular to "f" that passes through the origin.

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

Find the ratios of the corresponding sides

If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 165-pound man? 1.0 kg ca 5.1 kg ca 1.0 x 102 kg ca 5.1 x 102 kg ca