Answer:
number 5 is 15x
Step-by-step explanation:
what you have to do is just add basically. The ones with exponents you do the usual with those as well. Ignore the X's and when you solve the problem add the x beside the number.
Well we need to round the diameter to 100 so 3 x 100 = 300
so the approximate circumference is 300
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I got x=11
solution process: x-30=14-3x
-30=14-4x
-44=-4x
44=4x
11=x
