Write an expression that is equivalent to the sum of 4x^2+3 and 3x^2+8

Percy rides his bike 11.2 miles in 1.4 hours at a constant rate. write an equation to represent the proportional relationship between the number of hours percy rides, x,and the distance in miles, y, that he travels.

Is (root2 -2)^2 rational or irrational. show the steps and answer fast

Lena draws a square with an area that is greater than the area of rectangle b. what are two possible side lengths of lena's square? explain.