What is 2 1/4 in half

What is the percent of increase for a population that changed from 438,000 to 561,000

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i