HEL PLEASE QUICK What is the domain and range of the function y=2* ?
Use the graph to help!
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Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?

Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?