The perimeter of a rectangle is 120 centimeters. the base is 3 times the height. what are the dimensions of the rectangle? a. h = 9cm, b = 18 cm c. h = 15 cm, b = 45 cm b. h = 19 cm, b = 57 cm d. h = 10 cm, b = 15 cm select the best answer from the choices provided a b c d

What statement is true? 2x^2-9x+2=-1

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site