What is the y-value in the solution to this system of linear equations? 4x + 5y = −12

-2x + 3y = −16

a) −4
b) −2
c) 2
d) 5

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.