11. all services at the salon are 25% off today. maria decided to get a haircut that originally costs $22. a. what would her total bill be with the discount? b. now she needs to leave a 20% tip. how much should she leave?

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ft²