Which of the following rational numbers is closest to -3.5?

a. -3 4/5 b. -3.1 c. -3 3/8 d. -3.85

The floor plan of a room has a scale of 2.5 in.: 35 ft. in the drawing, the length of the room is 8 in. and the width of the room is 6 in. what is the perimeter of the actual room?

Ten times the square of a non-zero number is eqaul to ninety times the number

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?