Two negative integers are 8 units apart on the number line and have a product of 308. which equation could be used to determine x , the smaller negative integer

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?

What is the value of the expression below? (81^2)^1/8

Does the point (1, sqrt 7) lie on circle shown.