A student is saving part of his weekly allowance to purchase a bicycle. The graph below models the student's savings each week.
Total Savings ($)
45
40
35
30
25
20
15
10
5
X
0
12.
3
8 9
4 67
Weeks
Which answer choice below represents the amount of money the student had before he started saving?

Sienna planned a trapezoid-shaped garden, as shown in the drawing below. she decides to change the length of the top of the trapezoid-shaped garden from 32 ft to 24 ft. which expression finds the change in the scale factor?

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?

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?