Can someone help me please

Why do interests rates on loans to be lower in a weak economy than in a strong one

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.