A bag initially contains red marbles and blue marbles only, with more blue than red. Red marbles are added to the bag until only 1/4 of the marbles in the bag are blue. Then yellow marbles are added to the bag until only 1/7 of the marbles in the bag are blue. Finally, the number of yellow marbles in the bag is
doubled. What fraction of the marbles now in the bag are yellow?
(A) 1/5
(B) 1/4
(C) 1/3 (D) 3/5 (E) 1/2

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.

What is the result of the following division?