They are both equivalent to 1, so they are equal.
The answer is he needs 7.5 pizzas but you can’t do that so you round up to 8 pizzas

Step-by-step explanation:

Answer:
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Step-by-step explanation:
Answer:
m∡GHI = 21°
Step-by-step explanation:
Since the lines are intersecting, GHI and JHK are opposite angles, so they are the same measure.
That means you can set them equal to each other
x + 7 = 3x - 21
x = 14
Now plug x into GHI
14 + 7 = 21
m∡GHI = 21°