6.EE 13 7. Create an expression that is equal to 3x+2x+x, using the fewest terms​

What statement is true? 2x^2-9x+2=-1

How many verticies does a triangular prims have

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.