Step-by-step explanation:
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You have to multiply the number of people times the number of cookies they are each supposed to get
So, 28 x 3 = 84 cookies
Two angles are supplementary when they <span>add up to 180 degrees.
x = angle
19x-60 = </span><span>supplement angle
x + 19x - 60 = 180
20x = 180 + 60
20x = 240
x = 240/20
x = 12</span>° ← answer
The answer is 221. And it’s solved with PEMDAS
