Which is a quadratic function?

A. 3x+y^2=5
B. y=3x+5
C. x=3y+5
D. 3x^2+y=5

The sixth grade art students are making a mosaic using tiles in the shape of right triangles.each tile has leg measures of 3 centimeters and 5 centimeters.i f there are 200 tiles in the mosaic what is the area of the mosaic.

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Which statements regarding efg are true? check all that apply.