When multiplying fractions all you must do is multiply across. What this means is that you will multiply the numerator with numerator and denominator with denominator like so...
^^^This fraction can be reduced...
Hope this helped!
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C=2pier
C= 2 • 3.14 • 1.5 (radius if 1/2 of diameter)
C= 9.42
Hope that helps!
I believe it is f(x)=5|x|
I suggest you get a second opinion, though
Answer:
4) 7a + 11b
5) i'm not sure
6) 3 (n = 3)
7) i can't see the last ones, but i know that y = 6
i hope this helps
sorry i can't help more :(
Have a great day!