Which expressions represent the difference of exactly two expressions?

pick 3

a: 6 ( x + 7 ) - 2

b: -2j

c: 4f - 2g

d: 3xyz - 10

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

Which of the following is true for the relation f(x)=2x^2+1

Write an equation for the function that includes the points (2,100)and (3,100)