Answer: 
<u>Simplify both sides of the equation</u>
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(Combine Like Terms)

<u>Subtract 2x from both sides</u>
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<u>Divide both sides by 10</u>
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Answer:
radius = 15ft
diameter = 30ft
Step-by-step explanation:
3^x = 729
log(3^x) = log(729)
xlog(3) = log(729)
x = log(729)/log(3)
x = 6
76 divided by 4 is 19. Add a zero and the answer is 190.
Hope this helps you !!