Which of these is a trinomial?

A. 5xy

B. X + 2y^2 - 7

C. 2x - 7

D. 2x^3 - 7y^3

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.