Let p be the set of polynomials. let a, b,c, and d be elements of p such that b and d are non-zero elements of p. which of the following is true regarding the sum below?
a.
the sum is a polynomial.
b.
the sum is a rational number.
c.
the sum is a rational expression.
d.
the sum is an integer.

a triangular prism is a 3 dimensional shape composed of triangles and rectangles. it is made from two triangular bases and three rectangular sides.  

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.