Let a be an irrational number. is a⋅25 rational or irrational?

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?