Which number is larger 22.08, 22.079, 22.07?

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

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?