Asmall staircase is made so that the horizontal piece of each step 10 inches long and 25 inches wide. each step is 5 inches above the previous one. what is the surface area of this staircase?

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list