Answer:

round off to 3s.f
means change to when you have 3 useful numbers
7613.83 has 4numbers.2decimal
same must be the round off value
Let me know if you don’t understand anything. Hope this helped.
5 * 7 = 9y
35 = 9y
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3.8888888889
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y = 3.9
Answer:
P=14
Step-by-step explanation:
Since P depends on two variables x and y as the sum of the two, then;
P = 3+ 11
P = 14