A set of stairs is being built as shown. What is the height of the stair? 3 triangles form stairs. Each triangle has a side length of 9 inches and hypotenuse of 15 inches. The stair is inches high.

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?