Mrs. William's class is doing coin drive to raise money for a charity. Students have brought a total of 64 quarters and nickels . The students have raised a total of $ 12. Find the number of quarters Mrs. William's class has collected .

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?

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply

What is the slope of the line shown below?