Answer:
7+2-5=f
Step-by-step explanation:
If he starts on the 7 floor, then he is seven above ground, and that would clarify as a positive number. He then goes up 2 floors, which means we would add 2 to the original number. Going down five would mean we would subtract, because he is getting closer to zero, which is ground level. <em>F</em> represents the floor he is on now.
Hope this helps! (Brainliest please!)
His percentage of change in the amount of quarts is 82.22%.
Initial amount of lemonade = 45 quart
End amount of lemonade = 8 quart
Change in amount = 45 - 8
= 36
Percent = 
= 
= 0.8222 * 100
= 82.22%
Hence, his percentage of change is 82.22%.
To learn more about percentage here:
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Answer:
A=464
B=93
Step-by-step explanation:
A+B=557
A-B=371
Solving the two equations simultaneously gives A=464 and B=93
Answer: Step-by-step explanation:
x=39°
alternate exterior angles of parallel lines