Christine used 12 cubes to make this 3-step staircase. if she uses a total of 56 cubes to make a similar staircase, how many steps will the staircase have? think of using objects to you solve this problem.

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?