With mental math, you can perform equations quickly and efficiently. They also help you to develop your own strategies and solve more complex math equations. Hope this helps;)
Answer:
x = 51
Step-by-step explanation:
2x + 4 + x + 23 = 180
3x + 27 = 180
3x = 153
x = 51
-7 and 5. The product would be -35 and the sum -2.
Hope this helps
Answer:
quadrilateral
Step-by-step explanation:
I think your answers are 4 and 6
