Which is larger, 4 miles or 22,000 feet?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

Simplify the following expression 48^1/2

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?