Answer:
13.
Step-by-step explanation:
x+x+5=21
2x+5=21
2x=16
x=8
Answer:
Two common types of legislature are those in which the executive and the legislative branches are clearly separated, as in the U.S. Congress, and those in which members of the executive branch are chosen from the legislative membership, as in the British Parliament.
Step-by-step explanation:
- you just substitute (-2) into the x values of the above function

Answer:(x + 1)^2
Step-by-step explanation: