Some time ago, keith's height and his nephew's height were at a ratio of 15 : 7. then keith's height increased by 16% and his nephew's height doubled. if keith is now 34 cm taller than his nephew, what is their total current height?

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

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 is g(x) = 0 for the function g(x) = 5.23x + 4?