The average of all multiples of 7 between 0 and N is 52.5. Which of the following cannot represent a possible value of N? A) 100 B) 101 C) 103 D) 105 E) 106
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There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

The area of square garden is 300m squared. how long is the diagonal?

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.