Answer:153.9 cm
Step-by-step explanation:
The area of a circle is found by pi × radius squared and pi is aprox 3.14 so 3.15×7² = 153.86 then round off to the nearest tenth you get 153.9
Answer:
49.0809
Step-by-step explanation:
Round it up to 49.10
Answer:


Step-by-step explanation:


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Answer:
OK SO IN MULTIPLYING INTEGERS
negative into negative is positive
positive into positive is positive
positive into negative is negative
Step-by-step explanation: