Answer:
21
Step-by-step explanation:
we know that according to the isosceles triangle theorem, that the angles of the triangle are 90, 2x+3, 2x+3
from the triangle angle sum theorem, we know that 4x+6 = 90
solving, we get 4x=84, x=21
The answers are 1, 2, and 4. Look at the parallelogram's angles to be sure.
It’s the answer above sorry if this dindt help it might not be
Answer: 4 + (negative 7) is an equivalent expression, the answer is –11.
Step-by-step explanation: I did it on edenuity
4, could you mark brainliest?