Michael is taking a survey of students at his high school to find out how many hours they work per week. he surveys all of the students in his freshman english class. is this a good sampling method?

Negative 5 1/12 + negative 4 1/4 + 6 3/4

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm