Choose all sets that contain the number -2.22.
Natural numbers
Whole numbers
Integers

Rational numbers
Irrational numbers
Real numbers

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)