It's B.) The student’s answer is not reasonable. Estimation: 170 + 90 = 260
Simple. Multiple
Monday: 6x9.75
Tuesday &Wednesday: 5x9.75
Thursday & Friday: 7x9.75
The pattern is +5 +5 -1 +6 So the answer should be (B) 30,29,35
Reflecting the x axis, we multiply the y value by -1, getting (7, -3)
Reflecting the y axis, we multiply the x value by -1, getting (-7, 3)