Answers edited by Fabio
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How do you evaluate #\frac{ 7}{ 13} + \frac{ 1}{ 7}#?

How do you solve #3 2( 5x  4) >  9# and #3x >  4( x  2)#?

How do you solve #15+ 5t + 5= 415#?

How do you simplify #(10)^5/ (10)^9# leaving only positive exponents?

What are the asymptotes and removable discontinuities, if any, of #f(x)= 1/x^2+2#?

How do you solve #13 = 85d#?

How do you solve using the quadratic formula #3x^2 + 6x = 12#?