Plot the graph of the following points on graph paper, using I cm to represent 1 unit,
(a) A(-2, 0), B(4,0), C(5, 3) and D(-1,3)
(b) P(2, 1). Q(4,1) and R(6,5).
Hence find their areas.​

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets,x, and the number of student tickets,y. find the solution and explain what it means. i'll you if you me

Write 17/20 as a decimal and as a percent.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?