No solution.
Step-by-step explanation:
1) Simplify 2 + 2 to 4.

2) Simplify 4 + 5 to 9.

3) Since 9 = 0 is false, these is no solution.

Answer:
29°
Step-by-step explanation:
151° + a=180°
We know the sum of angles in a straight line is 180°
a= 180°-151°
The sign changed as it changed sides
a= 29°
Answer:
-2xy^2+x^2y+x^3+6y^2+3xy
Step-by-step explanation:
Answer:115 apex
Step-by-step explanation:
squaring something multiplies it by itself. -4^2 = -4*-4 = 16