Mark can clean a house in 7 hours. When he cleans the same house with Wendy, it takes them 3 hours to clean the house. How long would it take Wendy to clean the house by herself? Write your answer as a decimal.

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

Identify the parent function that can be used to graph the function f(x)=3(x-9)2