Answer:
x = 12
Step-by-step explanation:
The diagram shows an equilateral triangle (because all angles are congruent). All sides in equilateral triangle are congruent, so

Solve the equation

Check this value:

Thus, 
Answer:
it’s is because it’s linear and going up
Step-by-step explanation:
Answer: 21
Step-by-step explanation: If the video game displays 84 frames in 4 seconds you can calculate the rate per second by dividing 84 frames by 4 seconds. This will give you the rate for 1 second. 84 / 4 =21 frames per second.
Answer:
c
Step-by-step explanation:
Either you can use distributive property or you can add up the numbers in the brackets.
Hopefully that helped! :)